🔖 release: 1.2.1

Тег на зелёном коммите: в v1.2.0 проверки CI упали на порядке импортов.
Кода релиз не меняет — правка уже в main отдельным коммитом.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

.gitignore

@@ -20,7 +20,10 @@ test-results/
 .DS_Store
 
 # Перенесено из корневого .gitignore при переносе корня репозитория в code/chatballs
-data/
+# Тома docker-стенда (postgres, redis, caddy, media) — только в корне репозитория.
+# Без якоря правило ловило и demo_seed/data: русские манифесты в индексе уже
+# лежали, а новые файлы туда молча не попадали.
+/data/
 .env.bak-*
 **/staticfiles/
 

AGENTS.md

@@ -51,6 +51,9 @@ Engineering rules / обязательные практики:
 - Что записано в базу, переводится по коду, а не текстом: системные события диалога, уведомления и подписи журнала аудита хранят код, а фразу собирает бэкенд на языке читателя. Писать в историю готовую русскую фразу нельзя — её потом не перевести.
 - Язык запроса выбирается цепочкой: профиль сотрудника → организация → установка → браузер. Письмо получает язык адресата, а не отправителя.
 - На бэкенде `t(...)` не вызывается на уровне модуля: язык там свой на каждый запрос, а константа посчиталась бы один раз при импорте.
+- Текст, уходящий наружу — клиенту в мессенджер, письмо, кнопку виджета, — берёт язык не запроса, а организации: `t(..., language=customer_language(organization))`. Язык оператора, нажавшего кнопку, к речи компании с её клиентом отношения не имеет, и половина такого текста вообще рождается в воркере, где запроса нет.
+- Системный промпт агента не переводится: его читает модель. Язык ответа задаёт отдельная директива по полю `AIAgent.answer_language` — по умолчанию «как у клиента».
+- Демо-набор ставится на языке организации: манифесты лежат в `demo_seed/data/<язык>/`, наборы ключей в них совпадают. Бинарные вложения (аватары, голосовые) общие, текстовые документы — свои на каждый язык.
 
 Definition of Done:
 - Запускать только тесты, относящиеся к изменениям текущей итерации. Полный прогон всех тестов выполнять только по явному указанию владельца.

VERSION

@@ -1 +1 @@
-1.1.0
+1.2.1

apps/backend/chatballs/ai/agent_attachments.py

@@ -19,6 +19,7 @@ from chatballs.ai.agent_knowledge import (
 from chatballs.ai.knowledge_policy import readable_knowledge
 from chatballs.ai.models import AIAgent, Knowledge
 from chatballs.channels.models import Channel
+from chatballs.i18n import t
 from chatballs.support_portals.models import PortalArticle
 from chatballs.tenancy.context import TenantContext
 
@@ -37,17 +38,17 @@ def normalized_ids(raw_ids: Iterable[int], field: str) -> list[int]:
     normalized: list[int] = []
     for value in raw_ids:
         if isinstance(value, bool) or not isinstance(value, int) or value <= 0:
-            raise ValidationError({field: "Positive integer ID required"})
+            raise ValidationError({field: t("api.positive_id_required")})
         if value not in normalized:
             normalized.append(value)
     if not normalized:
-        raise ValidationError({field: "At least one ID is required"})
+        raise ValidationError({field: t("api.at_least_one_id")})
     return normalized
 
 
 def _locked_agent(*, context: TenantContext, agent: AIAgent) -> tuple[AIAgent, Channel]:
     if agent.channel.organization_id != context.organization_id:
-        raise ValidationError({"agent": "Agent belongs to another organization"})
+        raise ValidationError({"agent": t("ai.agent_other_organization")})
     channel = Channel.objects.select_for_update().get(
         id=agent.channel_id,
         organization_id=context.organization_id,
@@ -99,7 +100,7 @@ def link_knowledge_to_agent(
     )
     found_ids = set(readable.values_list("id", flat=True))
     if len(found_ids) != len(requested_ids):
-        raise ValidationError({"knowledgeIds": "Unknown knowledge item"})
+        raise ValidationError({"knowledgeIds": t("ai.unknown_knowledge_item")})
     available_ids = set(
         knowledge_available_to_channel(
             Knowledge.objects.filter(id__in=found_ids),
@@ -130,7 +131,7 @@ def link_portal_articles_to_agent(
     )
     found_ids = set(articles.values_list("id", flat=True))
     if len(found_ids) != len(requested_ids):
-        raise ValidationError({"articleIds": "Unknown portal article"})
+        raise ValidationError({"articleIds": t("ai.unknown_portal_article")})
     available_ids = set(
         portal_articles_available_to_channel(
             PortalArticle.objects.filter(id__in=found_ids),

apps/backend/chatballs/ai/agent_card.py

@@ -12,7 +12,7 @@ from django.db import transaction
 from django.db.models import Case, Count, IntegerField, Q, QuerySet, Value, When
 from django.utils.text import slugify
 
-from chatballs.ai.models import AIAgent, AIAgentStatus
+from chatballs.ai.models import AIAgent, AIAgentStatus, AnswerLanguage
 from chatballs.ai.serializers import agent_portal_article_payload
 from chatballs.channels.models import Channel
 from chatballs.channels.services import (
@@ -22,7 +22,7 @@ from chatballs.channels.services import (
     update_channel,
 )
 from chatballs.conversations.models import LifecycleState
-from chatballs.i18n import t
+from chatballs.i18n import normalize_language, t
 from chatballs.tenancy.context import TenantContext
 
 
@@ -129,6 +129,7 @@ def agent_card_payload(channel: Channel, *, knowledge_total: int | None = None)
         "providerIntegrationId": agent.provider_integration_id,
         "modelParams": agent.model_params,
         "limits": agent.limits,
+        "answerLanguage": agent.answer_language,
         "persona": agent.persona,
         "tone": agent.tone,
         "instructions": agent.instructions,
@@ -201,7 +202,7 @@ def create_agent_card(
     from chatballs.channels import authorization
     from chatballs.channels.services import _clean_name, _group_for_channel
 
-    authorization.require_organization_manage(context, operation="Создание агента")
+    authorization.require_organization_manage(context, operation="channels.operation_agent_create")
     clean_name = _clean_name(name)
     group = _group_for_channel(context=context, group_id=group_id)
     channel = Channel.objects.create(
@@ -235,6 +236,7 @@ def update_agent_card(
         "persona",
         "tone",
         "instructions",
+        "answerLanguage",
         "knowledgeIds",
     }
     if ai_fields & set(body):
@@ -245,20 +247,20 @@ def update_agent_card(
             not isinstance(knowledge_ids, list)
             or not all(isinstance(item, int) for item in knowledge_ids)
         ):
-            raise ValidationError({"knowledgeIds": "List of ids required"})
+            raise ValidationError({"knowledgeIds": t("api.list_of_ids_required")})
         model_params = body.get("modelParams", agent.model_params)
         limits = body.get("limits", agent.limits)
         if not isinstance(model_params, dict):
-            raise ValidationError({"modelParams": "Object required"})
+            raise ValidationError({"modelParams": t("api.object_required")})
         if not isinstance(limits, dict):
-            raise ValidationError({"limits": "Object required"})
+            raise ValidationError({"limits": t("api.object_required")})
         provider_integration_id = body.get(
             "providerIntegrationId", agent.provider_integration_id
         )
         if provider_integration_id is not None and not isinstance(
             provider_integration_id, int
         ):
-            raise ValidationError({"providerIntegrationId": "Integer id required"})
+            raise ValidationError({"providerIntegrationId": t("api.integer_id_required")})
         update_agent(
             context=context,
             agent=agent,
@@ -272,6 +274,9 @@ def update_agent_card(
                 persona=str(body.get("persona", agent.persona)),
                 tone=str(body.get("tone", agent.tone)),
                 instructions=str(body.get("instructions", agent.instructions)),
+                answer_language=_clean_answer_language(
+                    body.get("answerLanguage", agent.answer_language)
+                ),
                 knowledge_ids=knowledge_ids,
             ),
         )
@@ -281,6 +286,18 @@ def update_agent_card(
     return agent_card_for_context(context=context, agent_id=channel.id)
 
 
+def _clean_answer_language(value: object) -> str:
+    """Режим ответа агента: MIRROR, ORGANIZATION или код поддерживаемого языка."""
+
+    raw = str(value or "").strip()
+    if raw in AnswerLanguage.values:
+        return raw
+    code = normalize_language(raw)
+    if code:
+        return code
+    raise ValidationError({"answerLanguage": t("ai.unknown_answer_language")})
+
+
 def agent_deletion_blockers(channel: Channel) -> list[dict[str, object]]:
     """Агент удаляется вместе с каналом; блокируют только внешние связи."""
     counts = (
@@ -296,7 +313,7 @@ def delete_agent_card(*, context: TenantContext, channel: Channel) -> None:
     from chatballs.channels import authorization
     from chatballs.channels.services import ChannelHasReferences
 
-    authorization.require_organization_manage(context, operation="Удаление агента")
+    authorization.require_organization_manage(context, operation="channels.operation_agent_delete")
     blockers = agent_deletion_blockers(channel)
     if blockers:
         raise ChannelHasReferences(blockers)

apps/backend/chatballs/ai/agent_card_views.py

@@ -110,7 +110,7 @@ class AgentCardListView(APIView):
             try:
                 cards = cards.filter(group_id=int(group))
             except ValueError:
-                return Response({"detail": "group must be an id or none"}, status=400)
+                return Response({"detail": t("ai.group_id_or_none")}, status=400)
         from chatballs.ai.agent_card import (
             ensure_channel_agent,
             knowledge_total_for_organization,
@@ -135,7 +135,7 @@ class AgentCardListView(APIView):
         if group_id is not None and (
             isinstance(group_id, bool) or not isinstance(group_id, int)
         ):
-            return Response({"detail": "groupId must be an integer or null"}, status=400)
+            return Response({"detail": t("ai.group_id_integer_or_null")}, status=400)
         try:
             channel = create_agent_card(
                 context=request.tenant_context,
@@ -245,11 +245,11 @@ class AgentCardTestChatView(APIView):
             return Response({"detail": t("ai.empty_message")}, status=400)
         history = request.data.get("history") or []
         if not isinstance(history, list):
-            return Response({"detail": "history must be a list"}, status=400)
+            return Response({"detail": t("ai.history_must_be_list")}, status=400)
         try:
             result = run_channel_turn(channel=channel, message=message, history=history)
         except ProviderError as error:
-            return Response({"detail": f"Ошибка провайдера: {error}"}, status=502)
+            return Response({"detail": t("ai.provider_error", error=error)}, status=502)
         return Response(
             {
                 "reply": result.text,
@@ -272,7 +272,7 @@ class AgentCardConnectionsView(APIView):
         data = request.data if isinstance(request.data, dict) else {}
         integration_id = data.get("integrationId")
         if isinstance(integration_id, bool) or not isinstance(integration_id, int):
-            return Response({"detail": "integrationId must be an integer"}, status=400)
+            return Response({"detail": t("ai.integration_id_integer")}, status=400)
         try:
             integration, previous_channel_id = channel_services.bind_connection(
                 context=request.tenant_context,

apps/backend/chatballs/ai/bulk_views.py

@@ -16,19 +16,20 @@ from chatballs.ai.knowledge_bulk import (
 from chatballs.ai.models import AIAgent
 from chatballs.ai.selectors import agent_for_employee
 from chatballs.api.permissions import HasCapability
+from chatballs.i18n import t
 from chatballs.identity.audit import record_audit_event
 
 
 def _positive_id(value: object, field: str) -> int:
     if isinstance(value, bool) or not isinstance(value, int) or value <= 0:
-        raise ValidationError({field: "Positive integer ID required"})
+        raise ValidationError({field: t("api.positive_id_required")})
     return value
 
 
 def _knowledge_ids(body: dict[str, object]) -> list[int]:
     raw_ids = body.get("knowledgeIds")
     if not isinstance(raw_ids, list):
-        raise ValidationError({"knowledgeIds": "List of knowledge IDs required"})
+        raise ValidationError({"knowledgeIds": t("ai.list_of_knowledge_ids")})
     return [_positive_id(item, "knowledgeIds") for item in raw_ids]
 
 
@@ -68,7 +69,7 @@ class KnowledgeBulkMoveView(_KnowledgeBulkView):
 def _attach_action(body: dict[str, object]) -> bool:
     action = str(body.get("action", "attach"))
     if action not in {"attach", "detach"}:
-        raise ValidationError({"action": "Expected attach or detach"})
+        raise ValidationError({"action": t("ai.expected_attach_or_detach")})
     return action == "attach"
 
 
@@ -91,7 +92,7 @@ class _AgentLinkView(APIView):
             agent_id = _positive_id(request.data.get("agentId"), "agentId")
             raw_ids = request.data.get(self.id_field)
             if not isinstance(raw_ids, list):
-                raise ValidationError({self.id_field: "List of IDs required"})
+                raise ValidationError({self.id_field: t("ai.list_of_ids")})
             ids = [_positive_id(item, self.id_field) for item in raw_ids]
             attach = _attach_action(request.data)
         except ValidationError as error:
@@ -103,7 +104,7 @@ class _AgentLinkView(APIView):
                 capability="ai.manage",
             )
         except AIAgent.DoesNotExist:
-            return Response({"detail": "Agent not found"}, status=404)
+            return Response({"detail": t("ai.agent_not_found")}, status=404)
         try:
             result = self.link(request, agent, ids, attach)
         except ValidationError as error:
@@ -171,7 +172,7 @@ class AgentCategoryKnowledgeSelectView(APIView):
                 capability="ai.manage",
             )
         except AIAgent.DoesNotExist:
-            return Response({"detail": "Agent not found"}, status=404)
+            return Response({"detail": t("ai.agent_not_found")}, status=404)
         try:
             category_id = _positive_id(request.data.get("categoryId"), "categoryId")
             result = add_category_knowledge_to_agent(

apps/backend/chatballs/ai/category_views.py

@@ -14,16 +14,17 @@ from chatballs.ai.models import KnowledgeCategory
 from chatballs.ai.selectors import category_tree_for_employee
 from chatballs.ai.serializers import category_payload
 from chatballs.api.permissions import HasCapability
+from chatballs.i18n import t
 from chatballs.identity.audit import record_audit_event
 
 
 def _integer(value: object, field: str) -> int:
     if isinstance(value, bool):
-        raise ValidationError({field: "Integer required"})
+        raise ValidationError({field: t("api.integer_required")})
     try:
         return int(value)
     except (TypeError, ValueError) as error:
-        raise ValidationError({field: "Integer required"}) from error
+        raise ValidationError({field: t("api.integer_required")}) from error
 
 
 def _category(request: Request, category_id: int) -> KnowledgeCategory:
@@ -42,7 +43,7 @@ def _parent(
     try:
         return _category(request, parent_id)
     except KnowledgeCategory.DoesNotExist as error:
-        raise ValidationError({"parentId": "Parent category not found"}) from error
+        raise ValidationError({"parentId": t("ai.parent_category_not_found")}) from error
 
 
 def _audit(
@@ -110,7 +111,7 @@ class KnowledgeCategoryDetailView(APIView):
             require_category_manage(context=request.tenant_context)
             category = _category(request, category_id)
         except KnowledgeCategory.DoesNotExist:
-            return Response({"detail": "Category not found"}, status=404)
+            return Response({"detail": t("ai.category_not_found")}, status=404)
         try:
             parent = (
                 _parent(request, request.data.get("parentId"), field_present=True)
@@ -136,7 +137,7 @@ class KnowledgeCategoryDetailView(APIView):
             require_category_manage(context=request.tenant_context)
             category = _category(request, category_id)
         except KnowledgeCategory.DoesNotExist:
-            return Response({"detail": "Category not found"}, status=404)
+            return Response({"detail": t("ai.category_not_found")}, status=404)
         try:
             deleted_id = category.id
             delete_category(context=request.tenant_context, category=category)

apps/backend/chatballs/ai/knowledge_api_inputs.py

@@ -4,17 +4,18 @@ from rest_framework.request import Request
 from chatballs.ai.knowledge_services import KnowledgeInput
 from chatballs.ai.models import Knowledge
 from chatballs.ai.selectors import KnowledgeFilters
+from chatballs.i18n import t
 
 
 def _positive_id(value: object, field: str) -> int:
     if isinstance(value, bool):
-        raise ValidationError({field: "Positive integer id required"})
+        raise ValidationError({field: t("api.positive_id_required")})
     try:
         parsed = int(value)
     except (TypeError, ValueError) as error:
-        raise ValidationError({field: "Integer id required"}) from error
+        raise ValidationError({field: t("api.integer_id_required")}) from error
     if parsed <= 0:
-        raise ValidationError({field: "Positive integer id required"})
+        raise ValidationError({field: t("api.positive_id_required")})
     return parsed
 
 
@@ -38,7 +39,7 @@ def knowledge_input(
 ) -> KnowledgeInput:
     raw_enabled = body.get("isEnabled", current.is_enabled if current else True)
     if not isinstance(raw_enabled, bool):
-        raise ValidationError({"isEnabled": "Boolean required"})
+        raise ValidationError({"isEnabled": t("api.boolean_required")})
     return KnowledgeInput(
         title=str(body.get("title", current.title if current else "")),
         description=str(
@@ -59,7 +60,7 @@ def knowledge_filters(request: Request) -> KnowledgeFilters:
     elif raw_enabled.lower() == "false":
         is_enabled = False
     else:
-        raise ValidationError({"isEnabled": "Boolean required"})
+        raise ValidationError({"isEnabled": t("api.boolean_required")})
     agents = tuple(
         int(value) for value in request.query_params.getlist("agent") if value.isdigit()
     )

apps/backend/chatballs/ai/knowledge_bulk.py

@@ -14,6 +14,7 @@ from chatballs.ai.models import (
 )
 from chatballs.ai.services import knowledge_for_agent_ids
 from chatballs.channels.models import Channel
+from chatballs.i18n import t
 from chatballs.tenancy.context import TenantContext
 
 
@@ -21,11 +22,11 @@ def _normalized_knowledge_ids(knowledge_ids: Iterable[int]) -> list[int]:
     normalized: list[int] = []
     for knowledge_id in knowledge_ids:
         if isinstance(knowledge_id, bool) or not isinstance(knowledge_id, int):
-            raise ValidationError({"knowledgeIds": "Knowledge IDs must be integers"})
+            raise ValidationError({"knowledgeIds": t("ai.knowledge_ids_integers")})
         if knowledge_id not in normalized:
             normalized.append(knowledge_id)
     if not normalized:
-        raise ValidationError({"knowledgeIds": "At least one knowledge ID is required"})
+        raise ValidationError({"knowledgeIds": t("ai.at_least_one_knowledge_id")})
     return normalized
 
 
@@ -40,7 +41,7 @@ def _locked_knowledge(*, context: TenantContext, knowledge_ids: Iterable[int]) -
         .order_by("id")
     )
     if len(items) != len(normalized_ids):
-        raise ValidationError({"knowledgeIds": "Unknown knowledge item"})
+        raise ValidationError({"knowledgeIds": t("ai.unknown_knowledge_item")})
     return items
 
 
@@ -64,7 +65,7 @@ def bulk_move_knowledge(
             organization_id=context.organization_id,
         )
     except KnowledgeCategory.DoesNotExist as error:
-        raise ValidationError({"categoryId": "Category not found"}) from error
+        raise ValidationError({"categoryId": t("ai.category_not_found")}) from error
     items = _locked_knowledge(context=context, knowledge_ids=knowledge_ids)
     _require_bulk_write(context=context, items=items)
     now = timezone.now()
@@ -87,7 +88,7 @@ def add_category_knowledge_to_agent(
     *, context: TenantContext, agent: AIAgent, category_id: int
 ) -> CategorySelectionResult:
     if agent.channel.organization_id != context.organization_id:
-        raise ValidationError({"agent": "Agent belongs to another organization"})
+        raise ValidationError({"agent": t("ai.agent_other_organization")})
     channel = Channel.objects.select_for_update().get(
         id=agent.channel_id,
         organization_id=context.organization_id,
@@ -96,7 +97,7 @@ def add_category_knowledge_to_agent(
         id=category_id,
         organization_id=context.organization_id,
     ).exists():
-        raise ValidationError({"categoryId": "Category not found"})
+        raise ValidationError({"categoryId": t("ai.category_not_found")})
 
     current_ids = set(agent.knowledge_items.values_list("id", flat=True))
     category_ids = set(

apps/backend/chatballs/ai/knowledge_categories.py

@@ -3,6 +3,7 @@ from django.db import transaction
 
 from chatballs.ai.knowledge_types import UNCATEGORIZED_CATEGORY_NAME
 from chatballs.ai.models import KnowledgeCategory
+from chatballs.i18n import t
 from chatballs.identity.models import Organization
 from chatballs.tenancy.context import TenantContext
 
@@ -24,14 +25,14 @@ def _validate_category_context(
     *, context: TenantContext, category: KnowledgeCategory
 ) -> None:
     if category.organization_id != context.organization_id:
-        raise ValidationError({"category": "Category belongs to another organization"})
+        raise ValidationError({"category": t("ai.category_other_organization")})
 
 
 def _validate_parent(
     *, context: TenantContext, parent: KnowledgeCategory | None
 ) -> None:
     if parent is not None and parent.organization_id != context.organization_id:
-        raise ValidationError({"parent": "Parent category belongs to another organization"})
+        raise ValidationError({"parent": t("ai.parent_category_other_organization")})
 
 
 @transaction.atomic
@@ -57,7 +58,7 @@ def rename_category(
 ) -> KnowledgeCategory:
     _validate_category_context(context=context, category=category)
     if category.is_system:
-        raise ValidationError({"category": "System category is immutable"})
+        raise ValidationError({"category": t("ai.system_category_immutable")})
     locked = KnowledgeCategory.objects.select_for_update().get(pk=category.pk)
     locked.name = name
     locked.save(update_fields=["name"])
@@ -75,7 +76,7 @@ def move_category(
     _validate_category_context(context=context, category=category)
     _validate_parent(context=context, parent=parent)
     if category.is_system:
-        raise ValidationError({"category": "System category is immutable"})
+        raise ValidationError({"category": t("ai.system_category_immutable")})
     locked_categories = {
         item.pk: item
         for item in KnowledgeCategory.objects.select_for_update().filter(
@@ -104,7 +105,7 @@ def update_category(
     _validate_category_context(context=context, category=category)
     _validate_parent(context=context, parent=parent)
     if category.is_system:
-        raise ValidationError({"category": "System category is immutable"})
+        raise ValidationError({"category": t("ai.system_category_immutable")})
     locked_categories = {
         item.pk: item
         for item in KnowledgeCategory.objects.select_for_update().filter(

apps/backend/chatballs/ai/knowledge_import.py

@@ -13,6 +13,7 @@ from chatballs.ai.knowledge_services import (
     update_knowledge,
 )
 from chatballs.ai.models import Knowledge, KnowledgeCategory
+from chatballs.i18n import t
 from chatballs.tenancy.context import TenantContext
 
 
@@ -35,14 +36,14 @@ class KnowledgeImportResult:
 def _title(document: dict[str, object]) -> str:
     value = document.get("title")
     if not isinstance(value, str) or not value.strip():
-        raise ValidationError({"title": "Title is required"})
+        raise ValidationError({"title": t("ai.title_required")})
     return value.strip()
 
 
 def _content(document: dict[str, object]) -> str:
     value = document.get("content")
     if not isinstance(value, str):
-        raise ValidationError({"content": "Content string is required"})
+        raise ValidationError({"content": t("ai.content_required")})
     return value
 
 
@@ -53,18 +54,18 @@ def _description(document: dict[str, object], *, default: str) -> str:
     if value is None:
         return ""
     if not isinstance(value, str):
-        raise ValidationError({"description": "Description must be a string"})
+        raise ValidationError({"description": t("ai.description_string")})
     return value.strip()
 
 
 def _category_for_path(*, context: TenantContext, raw_path: object) -> KnowledgeCategory:
     if not isinstance(raw_path, list) or not raw_path:
-        raise ValidationError({"categoryPath": "Non-empty category path required"})
+        raise ValidationError({"categoryPath": t("ai.category_path_required")})
     parent_id = None
     category = None
     for raw_name in raw_path:
         if not isinstance(raw_name, str) or not raw_name.strip():
-            raise ValidationError({"categoryPath": "Category names must be non-empty strings"})
+            raise ValidationError({"categoryPath": t("ai.category_names_strings")})
         try:
             category = KnowledgeCategory.objects.get(
                 organization_id=context.organization_id,
@@ -72,7 +73,7 @@ def _category_for_path(*, context: TenantContext, raw_path: object) -> Knowledge
                 name=raw_name.strip(),
             )
         except KnowledgeCategory.DoesNotExist as error:
-            raise ValidationError({"categoryPath": "Category path not found"}) from error
+            raise ValidationError({"categoryPath": t("ai.category_path_not_found")}) from error
         parent_id = category.id
     assert category is not None
     return category
@@ -153,7 +154,7 @@ def import_knowledge_documents(
             title = raw_title.strip() if isinstance(raw_title, str) else ""
         try:
             if not isinstance(raw_document, dict):
-                raise ValidationError({"document": "Document must be an object"})
+                raise ValidationError({"document": t("ai.document_object_required")})
             outcome = _import_document(context=context, document=raw_document)
         except ValidationError as error:
             result.failed.append({"title": title, "detail": _validation_detail(error)})

apps/backend/chatballs/ai/knowledge_models.py

@@ -2,6 +2,7 @@ from django.core.exceptions import ValidationError
 from django.db import models
 
 from chatballs.ai.knowledge_types import UNCATEGORIZED_CATEGORY_NAME
+from chatballs.i18n import t
 from chatballs.tenancy.models import TenantRelationModel
 
 
@@ -42,23 +43,23 @@ class KnowledgeCategory(TenantRelationModel):
         super().clean()
         self.name = self.name.strip()
         if not self.name:
-            raise ValidationError({"name": "Category name is required"})
+            raise ValidationError({"name": t("ai.category_name_required")})
         persisted = None
         if self.pk is not None:
             persisted = type(self).objects.filter(pk=self.pk).values("is_system").first()
         if persisted and persisted["is_system"] and not self.is_system:
-            raise ValidationError({"category": "System category is immutable"})
+            raise ValidationError({"category": t("ai.system_category_immutable")})
         if self.is_system and self.name != UNCATEGORIZED_CATEGORY_NAME:
-            raise ValidationError({"name": "System category name is immutable"})
+            raise ValidationError({"name": t("ai.system_category_name_immutable")})
 
         ancestor = self.parent
         visited: set[int] = set()
         while ancestor is not None:
             if self.pk is not None and ancestor.pk == self.pk:
-                raise ValidationError({"parent": "Category cycle is not allowed"})
+                raise ValidationError({"parent": t("ai.category_cycle")})
             if ancestor.pk is not None:
                 if ancestor.pk in visited:
-                    raise ValidationError({"parent": "Category cycle is not allowed"})
+                    raise ValidationError({"parent": t("ai.category_cycle")})
                 visited.add(ancestor.pk)
             ancestor = ancestor.parent
 
@@ -68,11 +69,11 @@ class KnowledgeCategory(TenantRelationModel):
 
     def delete(self, *args: object, **kwargs: object):
         if self.is_system:
-            raise ValidationError({"category": "System category cannot be deleted"})
+            raise ValidationError({"category": t("ai.system_category_undeletable")})
         if self.children.exists():
-            raise ValidationError({"category": "Category with children cannot be deleted"})
+            raise ValidationError({"category": t("ai.category_with_children")})
         if self.knowledge_items.exists():
-            raise ValidationError({"category": "Category with knowledge cannot be deleted"})
+            raise ValidationError({"category": t("ai.category_with_knowledge")})
         return super().delete(*args, **kwargs)
 
     def __str__(self) -> str:

apps/backend/chatballs/ai/knowledge_services.py

@@ -12,6 +12,7 @@ from chatballs.ai.models import (
     KnowledgeAttachment,
     KnowledgeCategory,
 )
+from chatballs.i18n import t
 from chatballs.tenancy.context import TenantContext
 from chatballs.tenancy.storage import adjust_storage_usage
 from chatballs.tenancy.storage_quota import (
@@ -39,13 +40,13 @@ def _knowledge_category(*, context: TenantContext, category_id: int | None) -> K
             id=category_id,
         )
     except KnowledgeCategory.DoesNotExist as error:
-        raise ValidationError({"category": "Category not found"}) from error
+        raise ValidationError({"category": t("ai.category_not_found")}) from error
 
 
 @transaction.atomic
 def create_knowledge(*, context: TenantContext, data: KnowledgeInput) -> Knowledge:
     if not data.title.strip():
-        raise ValidationError({"title": "Title is required"})
+        raise ValidationError({"title": t("ai.title_required")})
     knowledge = Knowledge.objects.create(
         organization=context.organization,
         category=_knowledge_category(context=context, category_id=data.category_id),
@@ -63,9 +64,9 @@ def update_knowledge(
     *, context: TenantContext, knowledge: Knowledge, data: KnowledgeInput
 ) -> Knowledge:
     if knowledge.organization_id != context.organization_id:
-        raise ValidationError({"knowledge": "Knowledge belongs to another organization"})
+        raise ValidationError({"knowledge": t("ai.knowledge_other_organization")})
     if not data.title.strip():
-        raise ValidationError({"title": "Title is required"})
+        raise ValidationError({"title": t("ai.title_required")})
     locked = Knowledge.objects.select_for_update().get(pk=knowledge.pk)
     content_changed = locked.content != data.content
     locked.title = data.title.strip()
@@ -94,7 +95,7 @@ def update_knowledge(
 
 def delete_knowledge(*, context: TenantContext, knowledge: Knowledge) -> None:
     if knowledge.organization_id != context.organization_id:
-        raise ValidationError({"knowledge": "Knowledge belongs to another organization"})
+        raise ValidationError({"knowledge": t("ai.knowledge_other_organization")})
     attachments = list(knowledge.attachments.all())
     released_bytes = sum(attachment.size for attachment in attachments)
     for attachment in attachments:
@@ -112,12 +113,12 @@ def add_attachment(
     *, context: TenantContext, knowledge: Knowledge, upload: UploadedFile
 ) -> KnowledgeAttachment:
     if knowledge.organization_id != context.organization_id:
-        raise ValidationError({"knowledge": "Knowledge belongs to another organization"})
+        raise ValidationError({"knowledge": t("ai.knowledge_other_organization")})
     original_name = (upload.name or "").strip()
     if not original_name:
-        raise ValidationError({"file": "File name is required"})
+        raise ValidationError({"file": t("ai.file_name_required")})
     if upload.size and upload.size > _MAX_ATTACHMENT_BYTES:
-        raise ValidationError({"file": "File is too large (max 25 MB)"})
+        raise ValidationError({"file": t("ai.file_too_large_25")})
     existing = knowledge.attachments.filter(original_name=original_name).first()
     existing_size = existing.size if existing is not None else 0
     data = upload.read()
@@ -153,7 +154,7 @@ def add_attachment(
 
 def delete_attachment(*, context: TenantContext, attachment: KnowledgeAttachment) -> None:
     if attachment.knowledge.organization_id != context.organization_id:
-        raise ValidationError({"attachment": "Attachment belongs to another organization"})
+        raise ValidationError({"attachment": t("ai.attachment_other_organization")})
     knowledge = attachment.knowledge
     released_bytes = attachment.size
     attachment.file.delete(save=False)

apps/backend/chatballs/ai/migrations/0017_agent_answer_language.py

@@ -0,0 +1,23 @@
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    """Язык ответов агента.
+
+    Существующие агенты получают MIRROR — ответ на языке обращения. Для
+    одноязычной установки это ничего не меняет: клиенты пишут на её языке, и
+    агент отвечает так же. Для двуязычной — сразу перестаёт отвечать не на том
+    языке, на котором спросили.
+    """
+
+    dependencies = [
+        ("ai", "0016_remove_credential_mode"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="aiagent",
+            name="answer_language",
+            field=models.CharField(default="MIRROR", max_length=16),
+        ),
+    ]

apps/backend/chatballs/ai/models.py

@@ -14,6 +14,13 @@ DEFAULT_AI_MODEL = "anthropic/claude-sonnet-4.6"
 
 
 
+class AnswerLanguage(models.TextChoices):
+    """Режимы поля ``AIAgent.answer_language``, кроме кодов самих языков."""
+
+    MIRROR = "MIRROR", "Как у клиента"
+    ORGANIZATION = "ORGANIZATION", "Язык организации"
+
+
 class AIAgentStatus(models.TextChoices):
 
     DRAFT = "DRAFT", "Draft"
@@ -369,6 +376,19 @@ class AIAgent(TenantRelationModel):
 
     model_params = models.JSONField(default=dict, blank=True)
 
+    # Язык ответов клиенту. По умолчанию агент отвечает на языке, на котором
+    # к нему обратились: сигнал точный, лежит прямо в сообщении и не требует
+    # настройки. База знаний при этом остаётся одноязычной — поиск ведёт
+    # семантическая ветка (ai.retrieval), а эмбеддинги кроссязычные.
+    #
+    # Хранится либо режим (MIRROR, ORGANIZATION), либо код языка из
+    # chatballs.i18n.LANGUAGE_CODES — для тех, кому нужен ровно один язык
+    # независимо от того, на каком языке пришло сообщение.
+    answer_language = models.CharField(
+        max_length=16,
+        default=AnswerLanguage.MIRROR,
+    )
+
     # Инструкции из трёх частей; системный промпт собирается в этом порядке.
 
     persona = models.TextField(blank=True)  # кто он и что он

apps/backend/chatballs/ai/provider/base.py

@@ -3,6 +3,8 @@ from __future__ import annotations
 import abc
 from dataclasses import dataclass
 
+from chatballs.i18n import t
+
 
 @dataclass(frozen=True)
 class ChatMessage:
@@ -48,4 +50,4 @@ class LLMProvider(abc.ABC):
     def transcribe(self, *, audio: bytes, filename: str, content_type: str, model: str) -> str:
         """Расшифровка аудио (дизайн-базлайн v2). Реализуется OpenAI-совместимыми
         адаптерами (POST /audio/transcriptions); остальные явно отказывают."""
-        raise ProviderError(f"Провайдер {self.name} не поддерживает расшифровку аудио")
+        raise ProviderError(t("ai.provider_no_transcription", provider=self.name))

apps/backend/chatballs/ai/provider/demo.py

@@ -27,27 +27,63 @@ from chatballs.i18n import t
 EMBEDDING_DIM = 16
 KNOWLEDGE_MARKER = "Отвечай только на основе этих знаний:"
 HANDOFF_TOKEN = "<<HANDOFF>>"
-HUMAN_REQUEST_WORDS = ("человек", "оператор", "сотрудник", "менеджер", "живой", "жалоб", "верн", "возврат")
+# Язык демо-агента определяется по письму клиента — тем же правилом, что и у
+# настоящего агента (AnswerLanguage.MIRROR). Здесь оно грубое, по алфавиту:
+# провайдер детерминированный и без сети, распознавать язык ему нечем.
+CYRILLIC = re.compile(r"[а-яё]", re.IGNORECASE)
+
+# Слова, по которым видно, что клиент просит живого человека.
+HUMAN_REQUEST_WORDS = {
+    "ru": ("человек", "оператор", "сотрудник", "менеджер", "живой", "жалоб", "верн", "возврат"),
+    "en": ("human", "operator", "agent", "manager", "person", "complain", "refund", "return"),
+}
 _WORD = re.compile(r"[а-яёa-z0-9]+", re.IGNORECASE)
 _HEADER = re.compile(r"^\s*\[[^\]]{1,120}\]\s*")
 _STOP = {
-    "и", "в", "на", "с", "по", "у", "а", "но", "не", "что", "как", "это", "для", "до", "от",
-    "за", "из", "к", "о", "же", "ли", "бы", "вы", "мы", "я", "он", "она", "они", "мне", "вас",
-    "есть", "можно", "нужно", "хочу", "подскажите", "здравствуйте", "добрый", "день", "the",
+    "ru": {
+        "и", "в", "на", "с", "по", "у", "а", "но", "не", "что", "как", "это", "для", "до", "от",
+        "за", "из", "к", "о", "же", "ли", "бы", "вы", "мы", "я", "он", "она", "они", "мне", "вас",
+        "есть", "можно", "нужно", "хочу", "подскажите", "здравствуйте", "добрый", "день",
+    },
+    "en": {
+        "the", "and", "for", "you", "your", "with", "from", "that", "this", "are", "was", "can",
+        "could", "would", "have", "has", "not", "but", "our", "what", "how", "when", "where",
+        "please", "hello", "hi", "there", "want", "need", "tell", "about", "will", "its",
+    },
+}
+
+# Грубая морфология: смысл в том, чтобы «доставка» ≈ «доставку», а
+# «deliveries» ≈ «delivery». Настоящий стеммер тут был бы зависимостью ради
+# демо-стенда.
+_SUFFIXES = {
+    "ru": (
+        "ами", "ями", "ого", "его", "ому", "ему", "ыми", "ими", "ах", "ях", "ов", "ев", "ам",
+        "ям", "ой", "ей", "ую", "юю", "ая", "яя", "ые", "ие", "ть", "ся", "а", "я", "ы", "и",
+        "у", "ю", "е", "о",
+    ),
+    "en": ("ing", "ies", "ied", "ers", "es", "ed", "er", "ly", "s"),
 }
 
 
-def _tokens(text: str) -> set[str]:
+def _language_of(text: str) -> str:
+    """Язык письма клиента: кириллица — русский, иначе английский."""
+
+    return "ru" if CYRILLIC.search(text) else "en"
+
+
+def _tokens(text: str, language: str) -> set[str]:
+    stop = _STOP[language]
     return {
         _stem(word.lower())
         for word in _WORD.findall(text)
-        if len(word) > 2 and word.lower() not in _STOP
+        if len(word) > 2 and word.lower() not in stop
     }
 
 
 def _stem(word: str) -> str:
-    # Грубая морфология: обрезаем частые русские окончания, чтобы «доставка» ≈ «доставку».
-    for suffix in ("ами", "ями", "ого", "его", "ому", "ему", "ыми", "ими", "ах", "ях", "ов", "ев", "ам", "ям", "ой", "ей", "ую", "юю", "ая", "яя", "ые", "ие", "ть", "ся", "а", "я", "ы", "и", "у", "ю", "е", "о"):
+    # Слово может быть на другом языке, чем письмо (знания одноязычные), поэтому
+    # окончания режем по алфавиту самого слова, а не по языку диалога.
+    for suffix in _SUFFIXES[_language_of(word)]:
         if len(word) > 4 and word.endswith(suffix):
             return word[: -len(suffix)]
     return word
@@ -86,12 +122,13 @@ def _knowledge_sentences(messages: list[ChatMessage]) -> list[str]:
 def compose_reply(messages: list[ChatMessage]) -> tuple[str, bool]:
     """Ответ по знаниям и признак передачи оператору."""
     question = next((m.content for m in reversed(messages) if m.role == "user"), "")
+    language = _language_of(question)
     lowered = question.lower()
-    wants_human = any(word in lowered for word in HUMAN_REQUEST_WORDS)
-    query = _tokens(question)
+    wants_human = any(word in lowered for word in HUMAN_REQUEST_WORDS[language])
+    query = _tokens(question, language)
     scored = []
     for index, sentence in enumerate(_knowledge_sentences(messages)):
-        overlap = len(query & _tokens(sentence))
+        overlap = len(query & _tokens(sentence, language))
         if overlap:
             scored.append((-overlap, index, sentence))
     scored.sort()
@@ -99,13 +136,8 @@ def compose_reply(messages: list[ChatMessage]) -> tuple[str, bool]:
     if best and not wants_human:
         return " ".join(best), False
     if best:
-        return (
-            " ".join(best)
-            + " Передаю диалог сотруднику — он поможет дальше."
-        ), True
-    return (
-        "Уточню этот вопрос у коллег и передам диалог сотруднику — он ответит в рабочее время."
-    ), True
+        return " ".join(best) + t("ai.demo_handover_suffix", language=language), True
+    return t("ai.demo_handover", language=language), True
 
 
 class DemoProvider(LLMProvider):

apps/backend/chatballs/ai/provider/openai_http.py

@@ -38,6 +38,7 @@ import urllib.error
 import urllib.request
 
 from chatballs.ai.provider.base import ChatMessage, ChatResult, EmbeddingResult, ProviderError
+from chatballs.i18n import t
 from chatballs.integrations.proxy import build_opener
 
 
@@ -155,7 +156,7 @@ def chat_completions(*, base_url: str, api_key: str, messages: list[ChatMessage]
 
     except (KeyError, IndexError, TypeError) as error:
 
-        raise ProviderError(f"Unexpected provider response: {error}") from error
+        raise ProviderError(t("ai.unexpected_provider_response", error=error)) from error
 
     usage = data.get("usage") or {}
 
@@ -195,7 +196,7 @@ def embeddings(*, base_url: str, api_key: str, texts: list[str], model: str,
 
     except (KeyError, TypeError) as error:
 
-        raise ProviderError(f"Unexpected provider response: {error}") from error
+        raise ProviderError(t("ai.unexpected_provider_response", error=error)) from error
 
     usage = data.get("usage") or {}
 

apps/backend/chatballs/ai/provider/openrouter.py

@@ -66,9 +66,9 @@ class OpenRouterProvider(LLMProvider):
                 payload = json.loads(response.read().decode("utf-8"))
         except urllib.error.HTTPError as error:
             detail = error.read().decode("utf-8", "replace")[:300]
-            raise ProviderError(f"Расшифровка не удалась: HTTP {error.code} {detail}") from error
+            raise ProviderError(t("ai.transcription_failed_http", code=error.code, detail=detail)) from error
         except (urllib.error.URLError, TimeoutError, OSError, json.JSONDecodeError) as error:
-            raise ProviderError(f"Расшифровка не удалась: {error}") from error
+            raise ProviderError(t("ai.transcription_failed", error=error)) from error
         text = str(payload.get("text") or "").strip()
         if not text:
             raise ProviderError(t("ai.empty_transcript"))

apps/backend/chatballs/ai/provider/routing.py

@@ -25,6 +25,7 @@ from chatballs.ai.provider.base import LLMProvider, ProviderError
 from chatballs.ai.provider.custom import CustomProvider
 from chatballs.ai.provider.demo import DemoProvider
 from chatballs.ai.provider.openrouter import OpenRouterProvider
+from chatballs.i18n import t
 from chatballs.integrations.models import Integration, IntegrationProvider
 
 
@@ -79,7 +80,7 @@ def _channel_integration(channel) -> Integration:
         integration = getattr(channel, "provider_integration", None)
     if integration is None or not integration.secret:
         raise IntegrationNotConfigured(
-            "Агент не привязан к LLM-интеграции BYOK; выберите провайдера в настройках агента"
+            t("ai.agent_without_llm_integration")
         )
     return integration
 
@@ -104,5 +105,5 @@ def _provider_from_integration(integration: Integration) -> LLMProvider:
             proxy_url=integration.config.get("proxy_url", ""),
         )
     raise IntegrationNotConfigured(
-        f"Интеграция «{integration.provider}» не является LLM-провайдером BYOK"
+        t("ai.integration_is_not_llm", provider=integration.provider)
     )

apps/backend/chatballs/ai/provider_selection.py

@@ -11,6 +11,7 @@ from dataclasses import dataclass
 
 from django.core.exceptions import ValidationError
 
+from chatballs.i18n import t
 from chatballs.integrations.models import (
     Integration,
     IntegrationKind,
@@ -35,15 +36,23 @@ def configure_agent_provider(
             id=integration_id,
             organization_id=context.organization_id,
             kind=IntegrationKind.LLM_PROVIDER,
-            provider__in=[IntegrationProvider.OPENROUTER, IntegrationProvider.CUSTOM],
+            # DEMO — полноценный провайдер агента, а не заглушка настроек:
+            # на нём работает демо-стенд сразу после установки, без ключей.
+            # Без него любое сохранение агента демо-организации падало на
+            # «Неизвестная интеграция», хотя менялись инструкции, а не провайдер.
+            provider__in=[
+                IntegrationProvider.OPENROUTER,
+                IntegrationProvider.CUSTOM,
+                IntegrationProvider.DEMO,
+            ],
         )
     except (Integration.DoesNotExist, TypeError, ValueError) as error:
         raise ValidationError(
-            {"providerIntegrationId": "Unknown OpenRouter or Custom integration"}
+            {"providerIntegrationId": t("ai.unknown_provider_integration")}
         ) from error
     model = str(integration.config.get("default_model", "")).strip()
     if not model:
         raise ValidationError(
-            {"providerIntegrationId": "Integration default model is required"}
+            {"providerIntegrationId": t("ai.integration_model_required")}
         )
     return ProviderSelection(model, integration)

apps/backend/chatballs/ai/runtime.py

@@ -5,11 +5,15 @@ from chatballs.ai.agent_knowledge import (
     runtime_portal_articles_for_agent,
 )
 from chatballs.ai.invocation import invoke_chat
-from chatballs.ai.models import AIAgent, KnowledgeFragment
+from chatballs.ai.models import AIAgent, AnswerLanguage, KnowledgeFragment
 from chatballs.ai.provider.base import ChatMessage, ChatResult
 from chatballs.ai.retrieval import KnowledgeRetriever
+from chatballs.i18n import LANGUAGES, customer_language, normalize_language
 from chatballs.support_portals.addressing import article_public_url
 
+# Название языка — на нём самом: модели так однозначнее, чем «английский».
+LANGUAGE_LABELS = dict(LANGUAGES)
+
 # Гард стиля для мессенджеров: гарантирует простой текст вне зависимости от
 # того, что написано в авторских инструкциях.
 MESSENGER_STYLE_GUARD = (
@@ -31,6 +35,36 @@ HANDOFF_PROTOCOL = (
 )
 
 
+# Язык ответа. Директива стоит отдельной строкой и последней среди системных:
+# промпт написан по-русски и сам по себе тянет ответ в русский язык, а явное
+# указание это перебивает. Переводить сам промпт не нужно — его читает модель,
+# а не человек.
+ANSWER_IN_CUSTOMER_LANGUAGE = (
+    "Отвечай на том языке, на котором написано последнее сообщение клиента. "
+    "Если язык определить не удалось, отвечай на языке предыдущей переписки."
+)
+ANSWER_IN_FIXED_LANGUAGE = (
+    "Отвечай всегда на языке «{language}», независимо от того, на каком языке "
+    "написал клиент."
+)
+
+
+def answer_language_directive(agent: AIAgent) -> str:
+    """Строка системного промпта, задающая язык ответа агента."""
+
+    if agent.answer_language == AnswerLanguage.MIRROR:
+        return ANSWER_IN_CUSTOMER_LANGUAGE
+    if agent.answer_language == AnswerLanguage.ORGANIZATION:
+        code = customer_language(agent.channel.organization)
+    else:
+        code = normalize_language(agent.answer_language)
+    if not code:
+        # Код испортили руками или язык убрали из сборки: зеркало клиента
+        # безопаснее молчания — ответ всё равно попадёт в язык обращения.
+        return ANSWER_IN_CUSTOMER_LANGUAGE
+    return ANSWER_IN_FIXED_LANGUAGE.format(language=LANGUAGE_LABELS[code])
+
+
 @dataclass(frozen=True)
 class AgentTurnResult:
     result: ChatResult
@@ -102,6 +136,7 @@ def run_agent_turn(
         messages.append(
             ChatMessage(role="system", content=MESSENGER_STYLE_GUARD + "\n\n" + HANDOFF_PROTOCOL)
         )
+    messages.append(ChatMessage(role="system", content=answer_language_directive(agent)))
     catalog = knowledge_catalog(agent)
     if catalog:
         messages.append(ChatMessage(role="system", content=catalog))

apps/backend/chatballs/ai/services.py

@@ -25,6 +25,7 @@ class AgentInput:
     persona: str
     tone: str
     instructions: str
+    answer_language: str
     knowledge_ids: list[int] | None  # None -> выбор знаний не меняется
 
 
@@ -72,7 +73,7 @@ def knowledge_for_agent_ids(
         .order_by("id")
     )
     if len(items) != len(requested_ids):
-        raise ValidationError({"knowledgeIds": "Unknown or unavailable knowledge item"})
+        raise ValidationError({"knowledgeIds": t("ai.knowledge_unknown_or_unavailable")})
     return items
 
 
@@ -80,16 +81,16 @@ def knowledge_for_agent_ids(
 def create_agent(*, context: TenantContext, data: AgentCreateInput) -> AIAgent:
     organization = context.organization
     if not data.channel_code:
-        raise ValidationError({"channel": "Channel is required"})
+        raise ValidationError({"channel": t("ai.channel_required")})
     try:
         channel = Channel.objects.select_for_update().get(
             organization=organization,
             code=data.channel_code,
         )
     except Channel.DoesNotExist as error:
-        raise ValidationError({"channel": "Channel not found"}) from error
+        raise ValidationError({"channel": t("channels.not_found")}) from error
     if AIAgent.objects.filter(channel=channel).exists():
-        raise ValidationError({"channel": "Channel already has an AI agent"})
+        raise ValidationError({"channel": t("channels.agent_exists")})
 
     knowledge_items = knowledge_for_agent_ids(
         context=context,
@@ -117,7 +118,7 @@ def create_agent(*, context: TenantContext, data: AgentCreateInput) -> AIAgent:
 @transaction.atomic
 def update_agent(*, context: TenantContext, agent: AIAgent, data: AgentInput) -> AIAgent:
     if agent.channel.organization_id != context.organization_id:
-        raise ValidationError({"agent": "Agent belongs to another organization"})
+        raise ValidationError({"agent": t("ai.agent_other_organization")})
     channel = Channel.objects.select_for_update().get(
         id=agent.channel_id,
         organization_id=context.organization_id,
@@ -149,6 +150,7 @@ def update_agent(*, context: TenantContext, agent: AIAgent, data: AgentInput) ->
     locked.persona = data.persona
     locked.tone = data.tone
     locked.instructions = data.instructions
+    locked.answer_language = data.answer_language
     locked.save(
         update_fields=[
             "name",
@@ -160,6 +162,7 @@ def update_agent(*, context: TenantContext, agent: AIAgent, data: AgentInput) ->
             "persona",
             "tone",
             "instructions",
+            "answer_language",
             "updated_at",
         ]
     )
@@ -173,7 +176,7 @@ def set_agent_active(*, context: TenantContext, agent: AIAgent, is_active: bool)
     """Смена статуса AI без тарифных слотов (ADR-CHATBALLS-0042 §2): количество
     активных агентов не ограничено; активация требует настроенного провайдера."""
     if agent.channel.organization_id != context.organization_id:
-        raise ValidationError({"agent": "Agent belongs to another organization"})
+        raise ValidationError({"agent": t("ai.agent_other_organization")})
     locked = AIAgent.objects.select_for_update().get(
         pk=agent.id, organization_id=context.organization_id
     )
@@ -181,7 +184,7 @@ def set_agent_active(*, context: TenantContext, agent: AIAgent, is_active: bool)
     if locked.status == target_status:
         return locked
     if locked.status == AIAgentStatus.ARCHIVED:
-        raise ValidationError({"agent": "Archived AI agent cannot change state"})
+        raise ValidationError({"agent": t("ai.archived_agent_state")})
     if is_active and locked.provider_integration_id is None:
         raise ValidationError(
             {"providerIntegrationId": t("ai.pick_provider_first")}

apps/backend/chatballs/ai/test_answer_language.py

@@ -0,0 +1,64 @@
+"""Язык ответов агента: директива системного промпта и её режимы.
+
+Язык ответа задаётся не переводом промпта, а отдельной строкой: промпт читает
+модель, и переводить его незачем, — но написан он по-русски и сам по себе
+тянет ответ в русский язык. Явное указание это перебивает.
+"""
+
+from __future__ import annotations
+
+from django.test import TestCase
+
+from chatballs.ai.models import AIAgent, AnswerLanguage
+from chatballs.ai.runtime import (
+    ANSWER_IN_CUSTOMER_LANGUAGE,
+    answer_language_directive,
+)
+from chatballs.channels.models import Channel
+from chatballs.identity.bootstrap import bootstrap_owner
+from chatballs.identity.models import Organization
+
+
+class AnswerLanguageDirectiveTests(TestCase):
+    def setUp(self) -> None:
+        bootstrap_owner(email="owner@example.com", password="temporary-password")
+        self.organization = Organization.objects.get(slug="demo")
+        self.channel = Channel.objects.create(
+            organization=self.organization, code="main", name="Main"
+        )
+
+    def _agent(self, answer_language: str) -> AIAgent:
+        return AIAgent(
+            organization=self.organization,
+            channel=self.channel,
+            name="Agent",
+            answer_language=answer_language,
+        )
+
+    def test_default_is_the_language_of_the_client(self) -> None:
+        self.assertEqual(AIAgent().answer_language, AnswerLanguage.MIRROR)
+        self.assertEqual(
+            answer_language_directive(self._agent(AnswerLanguage.MIRROR)),
+            ANSWER_IN_CUSTOMER_LANGUAGE,
+        )
+
+    def test_fixed_language_names_it_in_the_language_itself(self) -> None:
+        # Название языка на нём самом («English», а не «английский»): модели так
+        # однозначнее, и перевода названия не требуется.
+        directive = answer_language_directive(self._agent("en"))
+        self.assertIn("English", directive)
+        self.assertNotEqual(directive, ANSWER_IN_CUSTOMER_LANGUAGE)
+
+    def test_organization_mode_follows_the_organization(self) -> None:
+        self.organization.language = "en"
+        self.organization.save(update_fields=["language"])
+        directive = answer_language_directive(self._agent(AnswerLanguage.ORGANIZATION))
+        self.assertIn("English", directive)
+
+    def test_unknown_value_falls_back_to_the_client_language(self) -> None:
+        # Значение испортили руками или язык убрали из сборки: зеркало клиента
+        # безопаснее молчания — ответ всё равно попадёт в язык обращения.
+        self.assertEqual(
+            answer_language_directive(self._agent("klingon")),
+            ANSWER_IN_CUSTOMER_LANGUAGE,
+        )

apps/backend/chatballs/ai/test_demo_provider.py

@@ -89,3 +89,45 @@ class DemoIntegrationTests(TestCase):
         checked = run_integration_test(context=self.context, integration=integration)
         self.assertEqual(checked.status, IntegrationStatus.OK)
         self.assertIsInstance(_provider_from_integration(Integration.objects.get(pk=integration.pk)), DemoProvider)
+
+
+ENGLISH_KNOWLEDGE = """Отвечай только на основе этих знаний:
+Making takes 5-7 working days after payment. Delivery across the country is DPD, \
+3-5 working days. The London courier calls an hour ahead.
+Ready-made items can be returned within 14 days."""
+
+
+class DemoProviderLanguageTests(TestCase):
+    """Демо-агент отвечает на языке обращения — как настоящий в режиме MIRROR."""
+
+    def test_english_question_is_answered_from_english_knowledge(self) -> None:
+        result = DemoProvider().chat(
+            messages=[
+                ChatMessage(role="system", content=ENGLISH_KNOWLEDGE),
+                ChatMessage(role="user", content="How long does delivery take?"),
+            ],
+            model="demo",
+        )
+        self.assertIn("DPD", result.text)
+        self.assertNotIn(HANDOFF_TOKEN, result.text)
+
+    def test_english_request_for_human_hands_off_in_english(self) -> None:
+        result = DemoProvider().chat(
+            messages=[
+                ChatMessage(role="system", content=ENGLISH_KNOWLEDGE),
+                ChatMessage(role="user", content="I want to speak to a human"),
+            ],
+            model="demo",
+        )
+        self.assertIn(HANDOFF_TOKEN, result.text)
+        self.assertNotRegex(result.text, r"[А-Яа-яЁё]")
+
+    def test_russian_question_still_answers_in_russian(self) -> None:
+        result = DemoProvider().chat(
+            messages=[
+                ChatMessage(role="system", content=KNOWLEDGE),
+                ChatMessage(role="user", content="Сколько идёт доставка?"),
+            ],
+            model="demo",
+        )
+        self.assertIn("СДЭК", result.text)

apps/backend/chatballs/ai/test_provider_modes.py

@@ -159,6 +159,28 @@ class AgentProviderOwnershipTests(TestCase):
         with self.assertRaises(ValidationError):
             configure_agent_provider(context=self.context, integration_id=999999)
 
+    def test_demo_provider_is_a_valid_agent_provider(self) -> None:
+        """Регрессия: демо-стенд нельзя было редактировать.
+
+        Демо ставит агентов на встроенный DEMO-провайдер, а выбор провайдера
+        его не принимал. Поле providerIntegrationId уходит с каждым PATCH
+        карточки, поэтому падало любое сохранение агента — даже правка
+        инструкций, где провайдер не меняли.
+        """
+
+        demo = create_integration(
+            context=self.context,
+            data=IntegrationInput(
+                provider=IntegrationProvider.DEMO,
+                name="Демо-провайдер",
+                secret="",
+                config={},
+            ),
+        )
+        selection = configure_agent_provider(context=self.context, integration_id=demo.id)
+        self.assertEqual(selection.integration, demo)
+        self.assertEqual(selection.model, "demo")
+
     def test_selection_never_writes_to_the_channel(self) -> None:
         integration = self._integration()
         selection = configure_agent_provider(

apps/backend/chatballs/ai/views.py

@@ -30,6 +30,7 @@ from chatballs.ai.selectors import (
 from chatballs.ai.serializers import attachment_payload, knowledge_payload
 from chatballs.api.pagination import page_payload, paginate
 from chatballs.api.permissions import HasCapability
+from chatballs.i18n import t
 from chatballs.identity.audit import record_audit_event
 from chatballs.identity.models import AuditEvent
 
@@ -122,7 +123,7 @@ class KnowledgeDetailView(_KnowledgeBaseView):
         try:
             knowledge = self._read_knowledge(request, knowledge_id)
         except Knowledge.DoesNotExist:
-            return Response({"detail": "Knowledge not found"}, status=404)
+            return Response({"detail": t("ai.knowledge_not_found")}, status=404)
         payload = knowledge_payload(knowledge)
         created_event = (
             AuditEvent.objects.filter(
@@ -162,7 +163,7 @@ class KnowledgeDetailView(_KnowledgeBaseView):
         try:
             knowledge = self._write_knowledge(request, knowledge_id)
         except Knowledge.DoesNotExist:
-            return Response({"detail": "Knowledge not found"}, status=404)
+            return Response({"detail": t("ai.knowledge_not_found")}, status=404)
         try:
             data = knowledge_input(request.data, current=knowledge)
             if not employee_can_write_knowledge(
@@ -185,7 +186,7 @@ class KnowledgeDetailView(_KnowledgeBaseView):
         try:
             knowledge = self._write_knowledge(request, knowledge_id)
         except Knowledge.DoesNotExist:
-            return Response({"detail": "Knowledge not found"}, status=404)
+            return Response({"detail": t("ai.knowledge_not_found")}, status=404)
         self._audit(request, "deleted", knowledge)
         delete_knowledge(context=request.tenant_context, knowledge=knowledge)
         return Response(status=204)
@@ -195,7 +196,7 @@ class KnowledgeImportView(_KnowledgeBaseView):
     def post(self, request: Request) -> Response:
         documents = request.data.get("documents")
         if not isinstance(documents, list) or not documents:
-            return Response({"detail": "documents must be a non-empty list"}, status=400)
+            return Response({"detail": t("ai.documents_non_empty")}, status=400)
         result = import_knowledge_documents(
             context=request.tenant_context,
             documents=documents,
@@ -222,7 +223,7 @@ class KnowledgeReindexView(_KnowledgeBaseView):
         try:
             knowledge = self._write_knowledge(request, knowledge_id)
         except Knowledge.DoesNotExist:
-            return Response({"detail": "Knowledge not found"}, status=404)
+            return Response({"detail": t("ai.knowledge_not_found")}, status=404)
         reindex_knowledge(knowledge)
         self._audit(request, "reindexed", knowledge)
         knowledge = self._write_knowledge(request, knowledge_id)
@@ -236,10 +237,10 @@ class KnowledgeAttachmentUploadView(_KnowledgeBaseView):
         try:
             knowledge = self._write_knowledge(request, knowledge_id)
         except Knowledge.DoesNotExist:
-            return Response({"detail": "Knowledge not found"}, status=404)
+            return Response({"detail": t("ai.knowledge_not_found")}, status=404)
         upload = request.FILES.get("file")
         if upload is None:
-            return Response({"detail": "file is required (multipart/form-data)"}, status=400)
+            return Response({"detail": t("ai.file_required")}, status=400)
         try:
             attachment = add_attachment(
                 context=request.tenant_context, knowledge=knowledge, upload=upload
@@ -255,10 +256,10 @@ class KnowledgeAttachmentDeleteView(_KnowledgeBaseView):
         try:
             knowledge = self._write_knowledge(request, knowledge_id)
         except Knowledge.DoesNotExist:
-            return Response({"detail": "Knowledge not found"}, status=404)
+            return Response({"detail": t("ai.knowledge_not_found")}, status=404)
         attachment = knowledge.attachments.filter(id=attachment_id).first()
         if attachment is None:
-            return Response({"detail": "Attachment not found"}, status=404)
+            return Response({"detail": t("ai.attachment_not_found")}, status=404)
         delete_attachment(context=request.tenant_context, attachment=attachment)
         self._audit(request, "attachment_deleted", knowledge)
         return Response(status=204)

apps/backend/chatballs/api/pagination.py

@@ -43,9 +43,9 @@ def _bounded_int(params, name: str, default: int, maximum: int) -> int:
     try:
         value = int(raw)
     except (TypeError, ValueError):
-        raise ValidationError(f"{name}: ожидается целое число") from None
+        raise ValidationError(t("api.expected_integer", name=name)) from None
     if value < 1:
-        raise ValidationError(f"{name}: ожидается число больше нуля")
+        raise ValidationError(t("api.expected_positive", name=name))
     return min(value, maximum)
 
 
@@ -57,9 +57,9 @@ def cursor_id(params, name: str = "cursor") -> int | None:
     try:
         value = int(raw)
     except (TypeError, ValueError):
-        raise ValidationError(f"{name}: ожидается идентификатор записи") from None
+        raise ValidationError(t("api.expected_record_id", name=name)) from None
     if value < 1:
-        raise ValidationError(f"{name}: ожидается идентификатор записи")
+        raise ValidationError(t("api.expected_record_id", name=name))
     return value
 
 

apps/backend/chatballs/calls/event_handlers.py

@@ -15,6 +15,7 @@ from chatballs.calls.services import CALL_INVITE_SEND
 from chatballs.calls.tokens import issue_invite_token
 from chatballs.conversations import transports
 from chatballs.events.handlers import register
+from chatballs.i18n import customer_language, t
 from chatballs.identity.instance_settings import public_base_url
 from chatballs.tenancy.context import TenantContext
 
@@ -49,8 +50,11 @@ def handle_call_invite_send(payload: dict, context: TenantContext | None) -> Non
         token, token_hash = issue_invite_token()
         invite.token_hash = token_hash
         invite.save(update_fields=["token_hash"])
-        call_label = "аудиозвонок" if call.kind == "AUDIO" else "видеозвонок"
-        invite_text = f"Приглашаем вас на {call_label}. Нажмите кнопку, чтобы перейти к звонку."
+        # Приглашение читает клиент, а не оператор, и рождается оно в воркере,
+        # где запроса нет: язык берём у организации.
+        language = customer_language(call.conversation.organization)
+        call_label = t("calls.kind_audio" if call.kind == "AUDIO" else "calls.kind_video", language=language)
+        invite_text = t("calls.invite_text", kind=call_label, language=language)
         url = f"{public_base_url()}/calls/{token}?kind={call.kind}"
         sent = transports.send_call_invite(
             call.delivery_connection,

apps/backend/chatballs/calls/lifecycle.py

@@ -105,7 +105,7 @@ def transition_call(
         )
     normalized_failure_code = failure_code.strip()
     if target_status == CallStatus.FAILED and not FAILURE_CODE_PATTERN.fullmatch(normalized_failure_code):
-        raise CallInvalidTransition("Для FAILED требуется нормализованный failure_code")
+        raise CallInvalidTransition(t("calls.failure_code_required"))
 
     now = timezone.now()
     update_fields = ["status", "updated_at"]

apps/backend/chatballs/calls/models.py

@@ -3,6 +3,7 @@ import uuid
 from django.conf import settings
 from django.db import models
 
+from chatballs.i18n import t
 from chatballs.tenancy.models import TenantRelationModel
 
 
@@ -40,7 +41,7 @@ TERMINAL_CALL_STATUSES = (
 class CallEndedBy(models.TextChoices):
     STAFF = "STAFF", "Сотрудник"
     CUSTOMER = "CUSTOMER", "Клиент"
-    SYSTEM = "SYSTEM", "Система"
+    SYSTEM = "SYSTEM", t("admin.actor_system")
     TIMEOUT = "TIMEOUT", "Таймаут"
 
 

apps/backend/chatballs/calls/services.py

@@ -131,7 +131,7 @@ def create_call_request(
     ensure_conversation_call_access(user=context.membership, conversation=conversation)
     if not call_allowed(conversation.connection, kind):
         raise CallAccessDenied(
-            "Видеозвонки отключены для этой точки входа" if kind == CallKind.VIDEO else "Звонки отключены для этой точки входа"
+            t("calls.video_off_entry_point") if kind == CallKind.VIDEO else t("calls.calls_off_entry_point")
         )
     identity = _conversation_identity(conversation)
     _check_call_creation_conflicts(conversation=conversation, initiator=initiator)

apps/backend/chatballs/channels/authorization.py

@@ -33,8 +33,10 @@ def has_organization_capability(context: TenantContext, capability: str) -> bool
 
 
 def require_organization_manage(context: TenantContext, *, operation: str) -> None:
+    """``operation`` — ключ каталога, а не готовый текст: отказ читает человек."""
+
     if not has_organization_capability(context, CHANNELS_MANAGE):
-        raise PermissionDenied(f"{operation} требует channels.manage")
+        raise PermissionDenied(t("channels.operation_needs_manage", operation=t(operation)))
 
 
 def require_channel_manage(context: TenantContext) -> None:

apps/backend/chatballs/channels/runtime.py

@@ -1,5 +1,6 @@
 from chatballs.ai.provider.base import ChatResult, ProviderError
 from chatballs.ai.runtime import run_agent_turn
+from chatballs.i18n import t
 
 
 def run_channel_turn(*, channel, message: str, history: list[dict] | None = None) -> ChatResult:
@@ -11,5 +12,5 @@ def run_channel_turn(*, channel, message: str, history: list[dict] | None = None
     """
     agent = getattr(channel, "ai_agent", None)
     if agent is None or not agent.is_active:
-        raise ProviderError("Channel has no active AI agent")
+        raise ProviderError(t("channels.no_active_agent"))
     return run_agent_turn(agent=agent, message=message, history=history, style_guard=True).result

apps/backend/chatballs/channels/services.py

@@ -47,7 +47,7 @@ class ConnectionAlreadyBound(Exception):
     def __init__(self, *, integration: Integration) -> None:
         self.integration = integration
         super().__init__(
-            "Подключение уже привязано к другому каналу: перенос требует force"
+            t("channels.binding_conflict")
         )
 
     def payload(self) -> dict[str, Any]:
@@ -74,9 +74,9 @@ class ChannelUpdate:
 def _clean_name(raw: object) -> str:
     name = str(raw or "").strip()
     if not name:
-        raise ValidationError({"name": "Название канала не может быть пустым"})
+        raise ValidationError({"name": t("channels.name_required")})
     if len(name) > NAME_MAX_LENGTH:
-        raise ValidationError({"name": "Название канала длиннее 255 символов"})
+        raise ValidationError({"name": t("channels.name_too_long")})
     return name
 
 
@@ -91,7 +91,7 @@ def _group_for_channel(
             organization_id=context.organization_id,
         )
     except EmployeeGroup.DoesNotExist as error:
-        raise ValidationError({"groupId": "Unknown group"}) from error
+        raise ValidationError({"groupId": t("channels.unknown_group")}) from error
 
 
 @transaction.atomic
@@ -114,11 +114,11 @@ def update_channel(
         authorization.require_channel_manage(context)
     if update.is_active is not UNSET and update.is_active != locked.is_active:
         authorization.require_organization_manage(
-            context, operation="Изменение статуса канала"
+            context, operation="channels.operation_status_change"
         )
     if update.policy:
         authorization.require_organization_manage(
-            context, operation="Изменение политики канала"
+            context, operation="channels.operation_policy_change"
         )
 
     changed: list[str] = []
@@ -149,10 +149,10 @@ def _messenger_integration(*, context: TenantContext, integration_id: int) -> In
             id=integration_id, organization_id=context.organization_id
         )
     except Integration.DoesNotExist as error:
-        raise ValidationError({"integrationId": "Подключение не найдено"}) from error
+        raise ValidationError({"integrationId": t("channels.connection_not_found")}) from error
     if integration.kind != IntegrationKind.MESSENGER:
         raise ValidationError(
-            {"integrationId": "LLM-провайдер не является подключением канала"}
+            {"integrationId": t("channels.llm_is_not_a_connection")}
         )
     return integration
 
@@ -169,7 +169,7 @@ def bind_connection(
     authorization.require_connections_manage(context)
     if not channel.is_active:
         raise ValidationError(
-            {"channelId": "Нельзя привязать подключение к архивному каналу"}
+            {"channelId": t("channels.archived_channel_binding")}
         )
     integration = _messenger_integration(context=context, integration_id=integration_id)
     previous_channel_id = integration.channel_id
@@ -189,7 +189,7 @@ def unbind_connection(
     authorization.require_connections_manage(context)
     integration = _messenger_integration(context=context, integration_id=integration_id)
     if integration.channel_id != channel.id:
-        raise ValidationError({"integrationId": "Подключение не привязано к каналу"})
+        raise ValidationError({"integrationId": t("channels.connection_not_bound")})
     # Диалоги не затрагиваются: Conversation.connection объявлен PROTECT.
     integration.channel = None
     integration.save(update_fields=["channel", "updated_at"])

apps/backend/chatballs/conversations/attachment_views.py

@@ -39,12 +39,12 @@ INLINE_TYPES = ("image/jpeg", "image/png", "image/gif", "image/webp", "applicati
 def validate_upload(upload) -> str:
     """Причина отказа или пустая строка."""
     if upload.size > MAX_FILE_BYTES:
-        return "Файл больше 20 МБ"
+        return t("conversations.attachment_too_large")
     if not upload.size:
-        return "Пустой файл"
+        return t("conversations.attachment_empty")
     name = safe_filename(upload.name or "")
     if name.lower().endswith(BLOCKED_SUFFIXES):
-        return "Такой тип файла отправить нельзя"
+        return t("conversations.attachment_type_blocked")
     return ""
 
 

apps/backend/chatballs/conversations/chat_extras_views.py

@@ -93,7 +93,7 @@ class ConversationContactView(ConversationViewBase):
                 continue
             value = str(request.data.get(field) or "").strip()
             if len(value) > limit:
-                return Response({"detail": f"Поле {field}: не длиннее {limit} символов"}, status=400)
+                return Response({"detail": t("conversations.field_too_long", field=field, limit=limit)}, status=400)
             if field == "name" and not value:
                 return Response({"detail": t("conversations.contact_name_empty")}, status=400)
             setattr(contact, field, value)
@@ -152,7 +152,7 @@ class ConversationLabelsView(ConversationViewBase):
         if not isinstance(label_ids, list) or not all(
             isinstance(item, int) for item in label_ids
         ):
-            return Response({"detail": "labelIds must be a list of ids"}, status=400)
+            return Response({"detail": t("conversations.label_ids_list")}, status=400)
         labels = list(
             ConversationLabel.objects.filter(
                 organization_id=request.tenant_context.organization_id,
@@ -186,7 +186,7 @@ class ConversationArchiveView(ConversationViewBase):
             return Response({"detail": t("conversations.not_found")}, status=404)
         archived = request.data.get("archived")
         if not isinstance(archived, bool):
-            return Response({"detail": "archived must be a boolean"}, status=400)
+            return Response({"detail": t("conversations.archived_boolean")}, status=400)
         if not archived and not can_administer_access(request.tenant_context.membership):
             return Response(
                 {"detail": t("conversations.restore_admin_only")}, status=403

apps/backend/chatballs/conversations/clients.py

@@ -186,7 +186,12 @@ def client_row(contact: Contact) -> dict:
 
 
 def _dialog_status(conversation: Conversation) -> str:
-    return {"closed": "Закрыт", "operator": "Оператор", "ai": "AI", "wait": "Ждёт оператора"}[_mode(conversation)]
+    return {
+        "closed": t("conversations.dialog_status_closed"),
+        "operator": t("conversations.dialog_status_operator"),
+        "ai": "AI",
+        "wait": t("conversations.dialog_status_wait"),
+    }[_mode(conversation)]
 
 
 def client_detail(organization_id: int, contact_id: int) -> dict:
@@ -257,9 +262,9 @@ def client_detail(organization_id: int, contact_id: int) -> dict:
     # Активность из жизненного цикла диалогов (created/closed) — реальные события.
     activity: list[dict] = []
     for conversation in conversations:
-        activity.append({"type": "created", "title": f"Диалог · {conversation.channel.name}", "at": conversation.created_at.isoformat()})
+        activity.append({"type": "created", "title": t("conversations.activity_started", channel=conversation.channel.name), "at": conversation.created_at.isoformat()})
         if conversation.lifecycle == LifecycleState.CLOSED:
-            activity.append({"type": "closed", "title": f"Диалог закрыт · {conversation.channel.name}", "at": conversation.last_activity_at.isoformat()})
+            activity.append({"type": "closed", "title": t("conversations.activity_closed", channel=conversation.channel.name), "at": conversation.last_activity_at.isoformat()})
     activity.sort(key=lambda item: item["at"], reverse=True)
 
     conversation_ids = [str(conversation.id) for conversation in conversations]
@@ -282,7 +287,7 @@ def client_detail(organization_id: int, contact_id: int) -> dict:
                 # тогда показываем код — как в журнале.
                 "action": audit_action_label(event.action) or event.action,
                 "object": audit_object_label(event.object_type, event.object_id),
-                "actor": (event.actor.full_name or event.actor.email) if event.actor_id else "Система",
+                "actor": (event.actor.full_name or event.actor.email) if event.actor_id else t("admin.actor_system"),
                 "result": audit_result_label(event.result),
             }
         )

apps/backend/chatballs/conversations/models.py

@@ -4,6 +4,7 @@ from django.contrib.postgres.search import SearchVector
 from django.db import models
 from django.utils import timezone
 
+from chatballs.i18n import t
 from chatballs.tenancy.models import TenantRelationModel
 
 # Минимальный домен диалогов (ADR-HUB-0001/0002/0003/0006). Состояние диалога
@@ -254,7 +255,7 @@ class MessageAuthor(models.TextChoices):
     CONTACT = "CONTACT", "Клиент"
     AI = "AI", "AI"
     OPERATOR = "OPERATOR", "Оператор"
-    SYSTEM = "SYSTEM", "Система"
+    SYSTEM = "SYSTEM", t("admin.actor_system")
 
 
 class SystemEvent(models.TextChoices):
@@ -355,6 +356,13 @@ class Message(TenantRelationModel):
         ordering = ["created_at"]
         indexes = [
             # Полнотекстовый поиск по сообщениям (поиск в списке диалогов).
+            #
+            # Конфигурация «russian» покрывает обе переписки, и второй индекс
+            # под английский был бы тратой места: в ней asciiword отдан
+            # english_stem, а word — russian_stem, поэтому английские слова
+            # стеммятся английским стеммером, а русские русским. Обратное
+            # неверно: «english» оставляет кириллицу без основы. Проверено
+            # тестом conversations/test_search_language.py.
             GinIndex(
                 SearchVector("text", config="russian"),
                 name="conv_message_text_fts",

apps/backend/chatballs/conversations/reporting_views.py

@@ -56,7 +56,7 @@ class ClientDetailView(ConversationViewBase):
                 continue
             value = str(request.data.get(field) or "").strip()
             if len(value) > limit:
-                return Response({"detail": f"Поле {field}: не длиннее {limit} символов"}, status=400)
+                return Response({"detail": t("conversations.field_too_long", field=field, limit=limit)}, status=400)
             if field == "name" and not value:
                 return Response({"detail": t("conversations.contact_name_empty")}, status=400)
             setattr(contact, field, value)

apps/backend/chatballs/conversations/services.py

@@ -13,18 +13,11 @@ from chatballs.conversations.models import (
     MessageKind,
     SystemEvent,
 )
-from chatballs.i18n import t
+from chatballs.i18n import customer_language, t
 from chatballs.identity.models import EmployeeRole
 from chatballs.integrations.models import IntegrationProvider
 from chatballs.tenancy.context import TenantContext
 
-CONTACT_REQUEST_TEXT = "Поделитесь, пожалуйста, контактом — нажмите кнопку ниже."
-
-CONTACT_REQUEST_TEXT_WEB = "Поделитесь, пожалуйста, номером телефона."
-
-
-
-
 
 class ClaimError(Exception):
 
@@ -116,6 +109,10 @@ def claim_locked_conversation(*, context: TenantContext, conversation: Conversat
 
         author_type=MessageAuthor.SYSTEM,
 
+        system_event=SystemEvent.OPERATOR_TOOK,
+
+        system_params={"operator": _operator_label(operator)},
+
         text=f"Оператор {_operator_label(operator)} перехватил диалог",
 
     )
@@ -270,7 +267,9 @@ def request_contact(*, context: TenantContext, conversation: Conversation) -> Me
 
     is_web = conversation.connection_id and conversation.connection.provider == IntegrationProvider.WEB
 
-    text = CONTACT_REQUEST_TEXT_WEB if is_web else CONTACT_REQUEST_TEXT
+    key = "conversations.contact_request_web" if is_web else "conversations.contact_request"
+
+    text = t(key, language=customer_language(conversation.organization))
 
     message = Message.objects.create(
 

apps/backend/chatballs/conversations/stats.py

@@ -21,6 +21,7 @@ from chatballs.conversations.models import (
     LifecycleState,
     Message,
 )
+from chatballs.i18n import t
 
 _ACTIVE_WINDOW = timedelta(minutes=15)
 _WEEKDAYS = ["Пн", "Вт", "Ср", "Чт", "Пт", "Сб", "Вс"]
@@ -126,7 +127,7 @@ def sales_overview_stats(context, period: str) -> dict:
     ):
         minutes = int((now - conversation.last_activity_at).total_seconds() // 60)
         meta = conversation.channel.name
-        title = (conversation.contact.name if conversation.contact_id else "") or "Гость"
+        title = (conversation.contact.name if conversation.contact_id else "") or t("conversations.guest")
         problems.append(
             {
                 "conversationId": conversation.id,

apps/backend/chatballs/conversations/test_search_language.py

@@ -0,0 +1,59 @@
+"""Поиск по переписке на обоих языках идёт одной конфигурацией — «russian».
+
+Выглядит как недосмотр: англоязычная установка ищет по своим письмам русской
+конфигурацией. На деле «russian» в PostgreSQL — не «русский стеммер на всё», а
+карта по типу токена: латиница уходит в english_stem, кириллица — в
+russian_stem. То есть английские слова уже стеммятся английским стеммером.
+
+Обратное неверно, и это здесь же проверяется: «english» отдаёт кириллицу
+english_stem и оставляет её без основы. Поэтому второй индекс под английский не
+нужен, а замена конфигурации на «english» была бы регрессом для русской
+переписки. Тест стоит затем, чтобы это не «починили» ещё раз.
+"""
+
+from __future__ import annotations
+
+from django.db import connection
+from django.test import TestCase
+
+from chatballs.conversations.models import Message
+
+
+class SearchConfigTests(TestCase):
+    def _matches(self, config: str, text: str, query: str) -> bool:
+        with connection.cursor() as cursor:
+            cursor.execute(
+                "SELECT to_tsvector(%s, %s) @@ websearch_to_tsquery(%s, %s)",
+                [config, text, config, query],
+            )
+            return cursor.fetchone()[0]
+
+    def test_russian_config_stems_english_words(self) -> None:
+        self.assertTrue(self._matches("russian", "the deliveries arrived", "delivery"))
+        self.assertTrue(self._matches("russian", "we are shipping orders", "shipped"))
+
+    def test_russian_config_stems_russian_words(self) -> None:
+        self.assertTrue(self._matches("russian", "заказы доставлены", "заказ"))
+
+    def test_english_config_leaves_russian_words_unstemmed(self) -> None:
+        # Ровно причина, по которой конфигурация не переключается по языку
+        # организации: на английской конфигурации «заказы» не находит «заказ».
+        self.assertFalse(self._matches("english", "заказы доставлены", "заказ"))
+
+    def test_messages_are_indexed_with_the_same_configuration(self) -> None:
+        # Конфигурация входит в выражение индекса: разойдись она с запросом —
+        # поиск ушёл бы в полный скан. Читаем определение из самой базы, а не
+        # из питоновского объекта: в базе лежит то, что реально применится.
+        with connection.cursor() as cursor:
+            cursor.execute(
+                "SELECT indexdef FROM pg_indexes WHERE indexname = %s",
+                ["conv_message_text_fts"],
+            )
+            row = cursor.fetchone()
+        self.assertIsNotNone(row, "индекс полнотекстового поиска не создан")
+        self.assertIn("'russian'", row[0])
+        self.assertEqual(
+            [i.name for i in Message._meta.indexes if "fts" in i.name],
+            ["conv_message_text_fts"],
+            "второй индекс под язык не нужен: «russian» уже покрывает латиницу",
+        )

apps/backend/chatballs/conversations/transports/__init__.py

@@ -1,6 +1,7 @@
 from chatballs.conversations.transports import email as _email
 from chatballs.conversations.transports import max as _max
 from chatballs.conversations.transports import telegram as _telegram
+from chatballs.i18n import t
 from chatballs.integrations.models import IntegrationProvider
 
 _POLL = {
@@ -114,7 +115,7 @@ def download_file(integration, inbound_file) -> tuple[bytes, str]:
         return content, inbound_file.content_type or guessed
     if integration.provider == IntegrationProvider.MAX and inbound_file.url:
         return _max.download_file(integration, inbound_file.url, inbound_file.content_type)
-    raise ValueError("File download is not supported for this provider")
+    raise ValueError(t("conversations.file_download_unsupported"))
 
 
 def supports_file_send(integration) -> bool:
@@ -143,7 +144,7 @@ def download_voice(integration, inbound) -> tuple[bytes, str]:
         return _telegram.download_voice(integration, inbound.voice_file_id)
     if integration.provider == IntegrationProvider.MAX and inbound.voice_url:
         return _max.download_voice(integration, inbound.voice_url)
-    raise ValueError("Voice download is not supported for this provider")
+    raise ValueError(t("conversations.voice_download_unsupported"))
 
 
 def supports_voice_send(integration) -> bool:

apps/backend/chatballs/conversations/transports/email.py

@@ -26,6 +26,7 @@ from chatballs.conversations.transports.base import (
     guess_content_type,
     safe_filename,
 )
+from chatballs.i18n import customer_language, t
 
 logger = logging.getLogger(__name__)
 
@@ -194,7 +195,8 @@ def send_text(integration, *, chat_id: str, user_id: str, text: str, attachments
     outgoing["From"] = _address(integration)
     outgoing["To"] = target
     subject = str(meta.get("subject", "")).strip()
-    outgoing["Subject"] = f"Re: {subject}" if subject and not subject.lower().startswith("re:") else (subject or "Re: Ваше обращение")
+    default_subject = t("conversations.email_default_subject", language=customer_language(integration.organization))
+    outgoing["Subject"] = f"Re: {subject}" if subject and not subject.lower().startswith("re:") else f"Re: {subject or default_subject}"
     last_message_id = str(meta.get("last_message_id", "")).strip()
     if last_message_id:
         outgoing["In-Reply-To"] = last_message_id
@@ -223,8 +225,10 @@ def send_text(integration, *, chat_id: str, user_id: str, text: str, attachments
 def send_voice(integration, *, chat_id: str, user_id: str, content: bytes, content_type: str, duration: int) -> bool:
     """Голосовое оператора уходит письмом с аудио-вложением."""
     suffix = "ogg" if "ogg" in content_type else (content_type.rsplit("/", 1)[-1] or "webm").split(";")[0]
-    return send_text(integration, chat_id=chat_id, user_id=user_id, text="Голосовое сообщение", attachments=[(content, f"voice.{suffix}", content_type)])
+    text = t("conversations.voice_message", language=customer_language(integration.organization))
+    return send_text(integration, chat_id=chat_id, user_id=user_id, text=text, attachments=[(content, f"voice.{suffix}", content_type)])
 
 
 def send_file(integration, *, chat_id: str, user_id: str, content: bytes, filename: str, content_type: str, caption: str = "") -> bool:
-    return send_text(integration, chat_id=chat_id, user_id=user_id, text=caption or f"Файл: {filename}", attachments=[(content, filename, content_type)])
+    text = caption or t("conversations.file_caption", name=filename, language=customer_language(integration.organization))
+    return send_text(integration, chat_id=chat_id, user_id=user_id, text=text, attachments=[(content, filename, content_type)])

apps/backend/chatballs/conversations/transports/max.py

@@ -27,6 +27,7 @@ from chatballs.conversations.transports.base import (
     request_json_multipart,
     safe_filename,
 )
+from chatballs.i18n import customer_language, t
 from chatballs.integrations.checks import DEFAULT_MAX_BASE_URL
 from chatballs.integrations.outbound import host_of
 
@@ -271,11 +272,17 @@ def send_text(integration, *, chat_id: str, user_id: str, text: str) -> bool:
     return _send(integration, chat_id=chat_id, user_id=user_id, body={"text": text})
 
 
+def _caption(integration, key: str) -> str:
+    """Подпись кнопки читает клиент — язык организации, а не язык запроса."""
+
+    return t(key, language=customer_language(integration.organization))
+
+
 def send_contact_request(integration, *, chat_id: str, user_id: str, text: str) -> bool:
     # Inline-клавиатура с кнопкой request_contact (Bot API MAX/TamTam).
     keyboard = {
         "type": "inline_keyboard",
-        "payload": {"buttons": [[{"type": "request_contact", "text": "Поделиться контактом"}]]},
+        "payload": {"buttons": [[{"type": "request_contact", "text": _caption(integration, "conversations.button_share_contact")}]]},
     }
     return _send(integration, chat_id=chat_id, user_id=user_id, body={"text": text, "attachments": [keyboard]})
 
@@ -284,7 +291,7 @@ def send_call_invite(integration, *, chat_id: str, user_id: str, text: str, url:
     # Приглашение на онлайн-звонок: inline-кнопка со ссылкой /calls/<token>.
     keyboard = {
         "type": "inline_keyboard",
-        "payload": {"buttons": [[{"type": "link", "text": "Перейти к звонку", "url": url}]]},
+        "payload": {"buttons": [[{"type": "link", "text": _caption(integration, "conversations.button_join_call"), "url": url}]]},
     }
     return _send(integration, chat_id=chat_id, user_id=user_id, body={"text": text, "attachments": [keyboard]})
 

apps/backend/chatballs/conversations/transports/telegram.py

@@ -23,6 +23,7 @@ from chatballs.conversations.transports.base import (
     request_json_multipart,
     safe_filename,
 )
+from chatballs.i18n import customer_language, t
 from chatballs.integrations.checks import DEFAULT_TELEGRAM_BASE_URL
 from chatballs.integrations.outbound import host_of
 
@@ -152,10 +153,16 @@ def send_text(integration, *, chat_id: str, user_id: str, text: str) -> bool:
     return _send(integration, chat_id=chat_id, user_id=user_id, body={"text": text})
 
 
+def _caption(integration, key: str) -> str:
+    """Подпись кнопки читает клиент — язык организации, а не язык запроса."""
+
+    return t(key, language=customer_language(integration.organization))
+
+
 def send_contact_request(integration, *, chat_id: str, user_id: str, text: str) -> bool:
     # Reply-клавиатура с request_contact: телефон бот получает только так.
     keyboard = {
-        "keyboard": [[{"text": "Поделиться контактом", "request_contact": True}]],
+        "keyboard": [[{"text": _caption(integration, "conversations.button_share_contact"), "request_contact": True}]],
         "one_time_keyboard": True,
         "resize_keyboard": True,
     }
@@ -169,7 +176,7 @@ def send_contact_ack(integration, *, chat_id: str, user_id: str, text: str) -> b
 
 def send_call_invite(integration, *, chat_id: str, user_id: str, text: str, url: str) -> bool:
     # Приглашение на онлайн-звонок: inline-кнопка со ссылкой /calls/<token>.
-    keyboard = {"inline_keyboard": [[{"text": "Перейти к звонку", "url": url}]]}
+    keyboard = {"inline_keyboard": [[{"text": _caption(integration, "conversations.button_join_call"), "url": url}]]}
     return _send(integration, chat_id=chat_id, user_id=user_id, body={"text": text, "reply_markup": keyboard})
 
 
@@ -182,7 +189,7 @@ def download_file(integration, file_id: str) -> tuple[bytes, str]:
     )
     file_path = ((data.get("result") or {}).get("file_path") or "")
     if not data.get("ok") or not file_path:
-        raise ValueError("Telegram getFile failed")
+        raise ValueError(t("conversations.telegram_getfile_failed"))
     content = download_bytes(
         f"{_base(integration)}/file/bot{token}/{file_path}",
         proxy_url=_proxy(integration),
@@ -226,7 +233,7 @@ def download_voice(integration, file_id: str) -> tuple[bytes, str]:
     )
     file_path = ((data.get("result") or {}).get("file_path") or "")
     if not data.get("ok") or not file_path:
-        raise ValueError("Telegram getFile failed")
+        raise ValueError(t("conversations.telegram_getfile_failed"))
     content = download_bytes(
         f"{_base(integration)}/file/bot{token}/{file_path}",
         proxy_url=_proxy(integration),

apps/backend/chatballs/conversations/views.py

@@ -93,7 +93,11 @@ class ConversationListView(ConversationViewBase):
             from django.db.models import Exists, OuterRef
 
             # Имена — по подстроке; тексты сообщений — полнотекстовым поиском
-            # (russian-конфиг, GIN-индекс conv_message_text_fts).
+            # (russian-конфиг, GIN-индекс conv_message_text_fts). Конфигурация
+            # одна на оба языка и от языка организации не зависит: в «russian»
+            # латиница отдана english_stem, а кириллица — russian_stem, так что
+            # английская переписка стеммится английским стеммером. Менять её на
+            # «english» нельзя — та оставит без основы русские слова.
             search = SearchQuery(query, config="russian", search_type="websearch")
             message_match = (
                 Message.objects.filter(conversation=OuterRef("pk"))

apps/backend/chatballs/i18n/__init__.py

@@ -1,5 +1,6 @@
 """Язык интерфейса: выбор языка запроса и каталог сообщений."""
 
+from chatballs.i18n.audience import customer_language
 from chatballs.i18n.catalog import current_language, t, tn
 from chatballs.i18n.languages import (
     DEFAULT_LANGUAGE,
@@ -22,6 +23,7 @@ __all__ = [
     "LANGUAGE_CODES",
     "RUSSIAN",
     "current_language",
+    "customer_language",
     "first_chosen",
     "normalize_language",
     "parse_accept_language",

apps/backend/chatballs/i18n/audience.py

@@ -0,0 +1,24 @@
+"""Язык текста, который уходит наружу — клиенту, а не сотруднику.
+
+Язык запроса здесь не годится. Приглашение на звонок, просьба поделиться
+контактом, тема исходящего письма — это речь организации, обращённая к её
+клиенту, и она не должна менять язык от того, кто из операторов нажал кнопку.
+Часть такого текста вообще рождается в воркере, где запроса нет.
+
+Поэтому берём язык организации, а если она его не задавала — язык установки.
+Язык самого клиента нам неизвестен: в Telegram, MAX и почте его сообщить
+нечему, а в веб-виджете он выбирается на стороне страницы.
+"""
+
+from __future__ import annotations
+
+from chatballs.i18n.languages import INHERIT, first_chosen, normalize_language
+
+
+def customer_language(organization: object) -> str:
+    """Язык обращения организации к клиенту. Пусто — язык по умолчанию."""
+
+    from chatballs.identity.instance_settings import default_language
+
+    organization_language = normalize_language(getattr(organization, "language", INHERIT))
+    return first_chosen(organization_language, default_language())

apps/backend/chatballs/i18n/messages/en.py

@@ -21,10 +21,10 @@ MESSAGES: dict[str, object] = {
     "ai.provider_not_configured": "No AI provider is configured: a call without a channel cannot pick an integration",
     "api.window_needs_sort_key": "a window needs at least one sort key",
     "calls.invite_invalid": "The invitation is not valid or has expired",
-    "calls.kind_audio": "audio call",
+    "calls.kind_audio": "an audio call",
     "calls.kind_invalid": "Unsupported call type",
     "calls.kind_required": "Choose the call type",
-    "calls.kind_video": "video call",
+    "calls.kind_video": "a video call",
     "calls.not_found": "Call not found",
     "calls.token_invalid": "The call access token is not valid or has expired",
     "channels.binding_needs_manage": "Binding a connection requires integrations.manage",
@@ -301,4 +301,234 @@ MESSAGES: dict[str, object] = {
     "calls.unfinished_call_exists": "The conversation already has an unfinished call",
     "channels.no_active_agent": "The channel has no active AI agent",
     "conversations.unavailable": "The conversation is unavailable",
+    "admin.action_not_allowed_for_employee": "You cannot perform this action on this employee",
+    "admin.email_required": "Email is required",
+    "admin.email_taken": "Email is already used",
+    "admin.full_name_required": "Full name is required",
+    "admin.invalid_role": "Invalid role",
+    "admin.not_allowed": "Not allowed",
+    "admin.previous_owner_role": "Previous owner role must be ADMIN or EMPLOYEE",
+    "admin.target_must_be_active": "Target must be an active employee",
+    "admin.temporary_passwords_unsupported": "Temporary passwords are not supported",
+    "admin.unknown_password_mode": "Unknown password mode",
+    "ai.attachment_not_found": "Attachment not found",
+    "ai.category_not_found": "Category not found",
+    "ai.documents_non_empty": "documents must be a non-empty list",
+    "ai.file_required": "file is required (multipart/form-data)",
+    "ai.group_id_integer_or_null": "groupId must be an integer or null",
+    "ai.group_id_or_none": "group must be an id or none",
+    "ai.history_must_be_list": "history must be a list",
+    "ai.integration_id_integer": "integrationId must be an integer",
+    "ai.knowledge_not_found": "Knowledge not found",
+    "ai.title_required": "Title is required",
+    "conversations.archived_boolean": "archived must be a boolean",
+    "conversations.label_ids_list": "labelIds must be a list of ids",
+    "identity.invalid_credentials": "Invalid credentials",
+    "identity.invalid_totp_code": "Invalid TOTP code",
+    "identity.invitation_email_mismatch": "Invitation email does not match the account",
+    "identity.invitation_invalid": "Invitation is invalid or has expired",
+    "identity.role_conflict": "User already has a different role in this organization",
+    "identity.token_required": "token is required",
+    "identity.totp_challenge_inactive": "TOTP challenge is not active",
+    "notifications.ids_list_or_all": "ids must be a list or use all=true",
+    "notifications.push_types_list": "pushTypes must be a list",
+    "platform.idempotency_key_required": "Idempotency-Key header is required",
+    "portals.articles_non_empty": "articles must be a non-empty list",
+    "profile.current_password_invalid": "Current password is invalid",
+    "profile.totp_enabled_already": "TOTP is already enabled",
+    "profile.totp_required_by_policy": "TOTP is required by an organization policy",
+    "ai.provider_error": "Provider error: {error}",
+    "conversations.activity_closed": "Conversation closed · {channel}",
+    "conversations.activity_started": "Conversation · {channel}",
+    "conversations.field_too_long": "Field {field}: no longer than {limit} characters",
+    "ai.provider_no_transcription": "The {provider} provider does not support audio transcription",
+    "ai.transcription_failed": "Transcription failed: {error}",
+    "ai.transcription_failed_http": "Transcription failed: HTTP {code} {detail}",
+    "api.expected_integer": "{name}: an integer is expected",
+    "api.expected_positive": "{name}: a number greater than zero is expected",
+    "api.expected_record_id": "{name}: a record identifier is expected",
+    "settings.storage_unavailable": "The storage is unavailable: {error}",
+    "admin.actor_system": "System",
+    "admin.image_formats": "PNG, JPEG and WebP are supported",
+    "admin.logo_too_large": "The logo must not exceed 2 MB",
+    "calls.calls_off_entry_point": "Calls are switched off for this entry point",
+    "calls.failure_code_required": "FAILED needs a normalized failure_code",
+    "calls.video_off_entry_point": "Video calls are switched off for this entry point",
+    "channels.archived_channel_binding": "A connection cannot be bound to an archived channel",
+    "channels.connection_not_bound": "The connection is not bound to a channel",
+    "channels.connection_not_found": "Connection not found",
+    "channels.llm_is_not_a_connection": "An LLM provider is not a channel connection",
+    "channels.name_required": "The channel name cannot be empty",
+    "channels.name_too_long": "The channel name is longer than 255 characters",
+    "portals.a_record_mismatch": "The domain's A record does not point at the Chatballs server",
+    "portals.a_record_missing": "The domain's A record has not appeared yet",
+    "portals.anonymous_widget_missing": "No active anonymous support web widget was found",
+    "portals.archived_article_publish": "An archived article cannot be published",
+    "portals.archived_article_readonly": "An archived article cannot be edited",
+    "portals.domain_empty_check": "An empty domain cannot be verified",
+    "portals.domain_is_internal": "The internal application domain cannot be used",
+    "portals.domain_required_first": "Set the domain first",
+    "portals.domain_same_as_installation": "A custom domain must differ from the Chatballs address",
+    "portals.domain_taken": "This domain is already used by another portal",
+    "portals.file_name_required": "The file name is required",
+    "portals.file_too_large": "The file is over 25 MB",
+    "portals.invalid_theme_id": "Invalid theme identifier",
+    "portals.invalid_theme_scheme": "Unknown theme colour scheme",
+    "portals.invalid_theme_setting_name": "Invalid theme setting name",
+    "portals.move_articles_first": "Move the articles out of this section first",
+    "portals.move_nested_sections_first": "Move or delete the nested sections first",
+    "portals.other_organization": "The portal belongs to another organization",
+    "portals.restore_to_edit_content": "Restore the portal to change its content",
+    "portals.restore_to_edit_domain": "Restore the portal to change its domain",
+    "portals.restore_to_edit_settings": "Restore the portal to change its settings",
+    "portals.restore_to_verify_domain": "Restore the portal to verify its domain",
+    "portals.revision_not_found": "Article revision not found",
+    "portals.slug_taken": "This address is already used by another portal",
+    "portals.theme_settings_json": "Theme settings must be a JSON object",
+    "portals.theme_settings_object": "Theme settings must be an object",
+    "portals.theme_settings_too_large": "The theme settings are too large",
+    "portals.unknown_status": "Unknown portal status",
+    "portals.widget_channel_missing": "The web widget channel was not found",
+    "profile.photo_too_large": "The photo must not exceed 2 MB",
+    "settings.local_or_s3": "LOCAL or S3",
+    "settings.object_written_not_readable": "The object was written but cannot be read — check the read permissions",
+    "settings.seconds_number": "A number of seconds",
+    "admin.group_name_required": "Group name is required",
+    "ai.agent_other_organization": "Agent belongs to another organization",
+    "ai.archived_agent_state": "Archived AI agent cannot change state",
+    "ai.at_least_one_knowledge_id": "At least one knowledge ID is required",
+    "ai.attachment_other_organization": "Attachment belongs to another organization",
+    "ai.category_cycle": "Category cycle is not allowed",
+    "ai.category_name_required": "Category name is required",
+    "ai.category_names_strings": "Category names must be non-empty strings",
+    "ai.category_other_organization": "Category belongs to another organization",
+    "ai.category_path_not_found": "Category path not found",
+    "ai.category_path_required": "Non-empty category path required",
+    "ai.category_with_children": "Category with children cannot be deleted",
+    "ai.category_with_knowledge": "Category with knowledge cannot be deleted",
+    "ai.channel_required": "Channel is required",
+    "ai.content_required": "Content string is required",
+    "ai.description_string": "Description must be a string",
+    "ai.document_object_required": "Document must be an object",
+    "ai.expected_attach_or_detach": "Expected attach or detach",
+    "ai.file_name_required": "File name is required",
+    "ai.file_too_large_25": "File is too large (max 25 MB)",
+    "ai.integration_model_required": "Integration default model is required",
+    "ai.knowledge_ids_integers": "Knowledge IDs must be integers",
+    "ai.knowledge_other_organization": "Knowledge belongs to another organization",
+    "ai.knowledge_unknown_or_unavailable": "Unknown or unavailable knowledge item",
+    "ai.list_of_ids": "List of IDs required",
+    "ai.list_of_knowledge_ids": "List of knowledge IDs required",
+    "ai.parent_category_not_found": "Parent category not found",
+    "ai.parent_category_other_organization": "Parent category belongs to another organization",
+    "ai.system_category_immutable": "System category is immutable",
+    "ai.system_category_name_immutable": "System category name is immutable",
+    "ai.system_category_undeletable": "System category cannot be deleted",
+    "ai.unknown_knowledge_item": "Unknown knowledge item",
+    "ai.unknown_portal_article": "Unknown portal article",
+    "ai.unknown_provider_integration": "Unknown OpenRouter or Custom integration",
+    "api.at_least_one_id": "At least one ID is required",
+    "api.boolean_required": "Boolean required",
+    "api.integer_id_required": "Integer id required",
+    "api.integer_required": "Integer required",
+    "api.list_of_ids_required": "List of ids required",
+    "api.object_required": "Object required",
+    "api.positive_id_required": "Positive integer ID required",
+    "channels.agent_exists": "Channel already has an AI agent",
+    "channels.not_found": "Channel not found",
+    "channels.unknown_group": "Unknown group",
+    "conversations.file_download_unsupported": "File download is not supported for this provider",
+    "conversations.telegram_getfile_failed": "Telegram getFile failed",
+    "conversations.voice_download_unsupported": "Voice download is not supported for this provider",
+    "portals.article_object_required": "Article must be an object",
+    "portals.locale_string": "Locale must be a string",
+    "portals.summary_string": "Summary must be a string",
+    "portals.widget_channel_mismatch": "Widget and legacy channel must match",
+    "portals.widget_needs_anonymous": "Portal widget must allow anonymous web sessions",
+    "portals.widget_needs_channel": "Portal widget must be bound to a channel",
+    "settings.allowed_origins_list": "allowedOrigins must be a list of strings",
+    "settings.api_key_required": "Custom API key is required",
+    "settings.custom_base_url_required": "Custom Base URL is required",
+    "settings.custom_model_required": "Custom model is required",
+    "settings.email_hosts_required": "Email address, IMAP host and SMTP host are required",
+    "settings.email_not_a_bot": "Email cannot be a notifications bot",
+    "settings.inactive_channel": "Inactive channel cannot accept connections",
+    "settings.integration_other_organization": "Integration belongs to another organization",
+    "settings.mailbox_password_required": "Mailbox password is required",
+    "settings.name_required": "Name required",
+    "settings.ports_numbers": "Ports must be numbers",
+    "settings.quick_replies_list": "quickReplies must be a list of strings",
+    "settings.unknown_provider": "Unknown provider",
+    "ai.field_required": "The field “{field}” is required",
+    "ai.unexpected_provider_response": "Unexpected provider response: {error}",
+    "settings.base_url_rejected": "Base URL: {error}",
+    "settings.proxy_url_rejected": "Proxy: {error}",
+    "notifications.type_dialog_waiting": "A dialog is waiting for an operator",
+    "notifications.type_dialog_new_message": "A new message in a dialog",
+    "notifications.type_release_published": "An agent release was published",
+    "notifications.type_integration_error": "Integration error",
+    "integrations.check_no_connection": "No connection: {error}",
+    "integrations.check_api_key_missing": "The API key is not set",
+    "integrations.check_base_url_missing": "Base URL is not set",
+    "integrations.check_bot_token_missing": "The bot token is not set",
+    "integrations.check_mailbox_password_missing": "The mailbox password is not set",
+    "integrations.check_mail_hosts_missing": "The address, IMAP host or SMTP host is missing",
+    "integrations.check_provider_answered": "{provider} answered {status}",
+    "integrations.check_endpoint_answered": "The endpoint answered {status}",
+    "integrations.check_key_accepted": "the key was accepted",
+    "integrations.check_bot_connected": "the bot is connected",
+    "integrations.check_demo": "Demo provider: answers from the agent's knowledge, with no external calls or keys",
+    "integrations.check_unsupported": "Checking is not supported for this connection type",
+    "integrations.check_web_not_bound": "The connection is not bound to a channel — the widget is inactive",
+    "integrations.check_web_no_config": "The web widget configuration has not been created",
+    "integrations.check_web_no_origins": "No allowed domains are set — the widget will be unavailable on the site",
+    "integrations.check_web_active": "The web widget is active · channel “{channel}”",
+    "integrations.check_endpoint_models": {"one": "The endpoint answers: {count} model", "other": "The endpoint answers: {count} models"},
+    "identity.password_help": "The password must contain a letter, a digit and a special character.",
+    "conversations.attachment_too_large": "The file is over 20 MB",
+    "conversations.attachment_empty": "The file is empty",
+    "conversations.attachment_type_blocked": "This file type cannot be sent",
+    "settings.s3_bucket_required": "Enter the bucket name",
+    "settings.s3_endpoint_scheme": "The address must start with http:// or https://",
+    "settings.s3_access_key_required": "Enter the Access Key",
+    "settings.s3_secret_key_required": "Enter the Secret Key",
+    "channels.binding_conflict": "The connection is already bound to another channel: moving it requires force",
+    "channels.operation_needs_manage": "{operation} requires channels.manage",
+    "channels.operation_status_change": "Changing the channel status",
+    "channels.operation_policy_change": "Changing the channel policy",
+    "conversations.dialog_status_closed": "Closed",
+    "conversations.dialog_status_operator": "Operator",
+    "conversations.dialog_status_wait": "Waiting for an operator",
+    "setup.your_name_required": "Enter your name",
+    "setup.your_name_too_long": "The name is longer than 255 characters",
+    "setup.email_invalid": "Enter a valid e-mail address",
+    "setup.check_fields": "Check the fields you filled in",
+    "setup.owner_position": "Owner",
+    "ai.agent_without_llm_integration": "The agent is not bound to a BYOK LLM integration; choose a provider in the agent settings",
+    "ai.integration_is_not_llm": "The “{provider}” integration is not a BYOK LLM provider",
+    "settings.url_scheme_required": "The address must start with one of these schemes: {schemes}",
+    "settings.download_http_only": "Downloads are only allowed over http/https",
+    "settings.url_points_inside": "The address points into the internal network",
+    "settings.scheme_forbidden": "The {scheme} scheme is not allowed in outgoing requests",
+    "conversations.contact_request": "Please share your contact — tap the button below.",
+    "conversations.contact_request_web": "Please share your phone number.",
+    "calls.invite_text": "You are invited to {kind}. Tap the button to join the call.",
+    "conversations.email_default_subject": "Your request",
+    "conversations.voice_message": "Voice message",
+    "conversations.file_caption": "File: {name}",
+    "webchat.default_greeting": "Hello! Happy to help and answer your questions. What can we do for you?",
+    "webchat.default_consent": "By continuing you agree that your messages are processed to answer your request.",
+    "webchat.guest_name": "Guest · {code}",
+    "channels.operation_agent_create": "Creating an agent",
+    "channels.operation_agent_delete": "Deleting an agent",
+    "identity.browser_unknown": "Browser",
+    "settings.mail_test_subject": "Chatballs mail check",
+    "settings.mail_test_body": "This is a test message from Settings. If you are reading it, the installation's mail works.",
+    "notifications.binding_done": "Done! Chatballs notifications are connected. You can turn them off in your profile.",
+    "notifications.binding_hint": "This is the Chatballs notification bot. To connect notifications, open your profile in Chatballs and press “Connect”.",
+    "conversations.button_share_contact": "Share contact",
+    "conversations.button_join_call": "Join the call",
+    "ai.demo_handover": "I'll check this with my colleagues and hand the dialog to a member of staff — they will answer during working hours.",
+    "ai.demo_handover_suffix": " I'm handing the dialog to a member of staff — they will help from here.",
+    "ai.unknown_answer_language": "Unknown agent answer language",
 }

apps/backend/chatballs/i18n/messages/ru.py

@@ -305,4 +305,234 @@ MESSAGES: dict[str, object] = {
     "calls.unfinished_call_exists": "В диалоге уже есть незавершённый звонок",
     "channels.no_active_agent": "У канала нет активного AI-агента",
     "conversations.unavailable": "Диалог недоступен",
+    "admin.action_not_allowed_for_employee": "Это действие над этим сотрудником недоступно",
+    "admin.email_required": "Укажите email",
+    "admin.email_taken": "Этот email уже используется",
+    "admin.full_name_required": "Укажите имя и фамилию",
+    "admin.invalid_role": "Неизвестная роль",
+    "admin.not_allowed": "Недостаточно прав",
+    "admin.previous_owner_role": "Прежний владелец становится администратором или сотрудником",
+    "admin.target_must_be_active": "Владение передаётся действующему сотруднику",
+    "admin.temporary_passwords_unsupported": "Временные пароли не поддерживаются",
+    "admin.unknown_password_mode": "Неизвестный режим выдачи пароля",
+    "ai.attachment_not_found": "Вложение не найдено",
+    "ai.category_not_found": "Категория не найдена",
+    "ai.documents_non_empty": "documents — непустой список",
+    "ai.file_required": "Нужен файл в поле file (multipart/form-data)",
+    "ai.group_id_integer_or_null": "groupId — целое число или null",
+    "ai.group_id_or_none": "group — идентификатор или none",
+    "ai.history_must_be_list": "history — список",
+    "ai.integration_id_integer": "integrationId — целое число",
+    "ai.knowledge_not_found": "Знание не найдено",
+    "ai.title_required": "Укажите заголовок",
+    "conversations.archived_boolean": "archived — булево значение",
+    "conversations.label_ids_list": "labelIds — список идентификаторов",
+    "identity.invalid_credentials": "Неверный email или пароль",
+    "identity.invalid_totp_code": "Неверный код",
+    "identity.invitation_email_mismatch": "Приглашение выписано на другой адрес",
+    "identity.invitation_invalid": "Приглашение недействительно или истекло",
+    "identity.role_conflict": "У пользователя уже другая роль в этой организации",
+    "identity.token_required": "Нужен токен",
+    "identity.totp_challenge_inactive": "Проверка кода уже неактуальна — войдите заново",
+    "notifications.ids_list_or_all": "ids — список, либо all=true",
+    "notifications.push_types_list": "pushTypes — список",
+    "platform.idempotency_key_required": "Нужен заголовок Idempotency-Key",
+    "portals.articles_non_empty": "articles — непустой список",
+    "profile.current_password_invalid": "Текущий пароль неверен",
+    "profile.totp_enabled_already": "Двухфакторная аутентификация уже включена",
+    "profile.totp_required_by_policy": "Организация требует двухфакторную аутентификацию",
+    "ai.provider_error": "Ошибка провайдера: {error}",
+    "conversations.activity_closed": "Диалог закрыт · {channel}",
+    "conversations.activity_started": "Диалог · {channel}",
+    "conversations.field_too_long": "Поле {field}: не длиннее {limit} символов",
+    "ai.provider_no_transcription": "Провайдер {provider} не поддерживает расшифровку аудио",
+    "ai.transcription_failed": "Расшифровка не удалась: {error}",
+    "ai.transcription_failed_http": "Расшифровка не удалась: HTTP {code} {detail}",
+    "api.expected_integer": "{name}: ожидается целое число",
+    "api.expected_positive": "{name}: ожидается число больше нуля",
+    "api.expected_record_id": "{name}: ожидается идентификатор записи",
+    "settings.storage_unavailable": "Хранилище недоступно: {error}",
+    "admin.actor_system": "Система",
+    "admin.image_formats": "Поддерживаются PNG, JPEG и WebP",
+    "admin.logo_too_large": "Размер логотипа не должен превышать 2 МБ",
+    "calls.calls_off_entry_point": "Звонки отключены для этой точки входа",
+    "calls.failure_code_required": "Для FAILED требуется нормализованный failure_code",
+    "calls.video_off_entry_point": "Видеозвонки отключены для этой точки входа",
+    "channels.archived_channel_binding": "Нельзя привязать подключение к архивному каналу",
+    "channels.connection_not_bound": "Подключение не привязано к каналу",
+    "channels.connection_not_found": "Подключение не найдено",
+    "channels.llm_is_not_a_connection": "LLM-провайдер не является подключением канала",
+    "channels.name_required": "Название канала не может быть пустым",
+    "channels.name_too_long": "Название канала длиннее 255 символов",
+    "portals.a_record_mismatch": "A-запись домена указывает не на сервер Chatballs",
+    "portals.a_record_missing": "A-запись домена пока не найдена",
+    "portals.anonymous_widget_missing": "Активный анонимный Web-виджет поддержки не найден",
+    "portals.archived_article_publish": "Архивную статью нельзя публиковать",
+    "portals.archived_article_readonly": "Архивную статью нельзя изменять",
+    "portals.domain_empty_check": "Нельзя подтвердить пустой домен",
+    "portals.domain_is_internal": "Домен внутреннего приложения использовать нельзя",
+    "portals.domain_required_first": "Сначала укажите домен",
+    "portals.domain_same_as_installation": "Свой домен должен отличаться от адреса Chatballs",
+    "portals.domain_taken": "Этот домен уже используется другим порталом",
+    "portals.file_name_required": "Имя файла обязательно",
+    "portals.file_too_large": "Файл больше 25 МБ",
+    "portals.invalid_theme_id": "Некорректный идентификатор темы",
+    "portals.invalid_theme_scheme": "Неизвестная цветовая схема темы",
+    "portals.invalid_theme_setting_name": "Некорректное имя параметра темы",
+    "portals.move_articles_first": "Сначала переместите статьи из этого раздела",
+    "portals.move_nested_sections_first": "Сначала переместите или удалите вложенные разделы",
+    "portals.other_organization": "Портал принадлежит другой организации",
+    "portals.restore_to_edit_content": "Восстановите портал, чтобы изменить его содержимое",
+    "portals.restore_to_edit_domain": "Восстановите портал, чтобы изменить его домен",
+    "portals.restore_to_edit_settings": "Восстановите портал, чтобы изменить настройки",
+    "portals.restore_to_verify_domain": "Восстановите портал, чтобы подтвердить его домен",
+    "portals.revision_not_found": "Версия статьи не найдена",
+    "portals.slug_taken": "Этот адрес уже используется другим порталом",
+    "portals.theme_settings_json": "Параметры темы должны быть JSON-объектом",
+    "portals.theme_settings_object": "Параметры темы должны быть объектом",
+    "portals.theme_settings_too_large": "Параметры темы слишком велики",
+    "portals.unknown_status": "Неизвестный статус портала",
+    "portals.widget_channel_missing": "Канал веб-виджета не найден",
+    "profile.photo_too_large": "Размер фото не должен превышать 2 МБ",
+    "settings.local_or_s3": "LOCAL или S3",
+    "settings.object_written_not_readable": "Объект записан, но не читается — проверьте права на чтение",
+    "settings.seconds_number": "Число секунд",
+    "admin.group_name_required": "Укажите название группы",
+    "ai.agent_other_organization": "Агент принадлежит другой организации",
+    "ai.archived_agent_state": "Состояние архивного агента не меняется",
+    "ai.at_least_one_knowledge_id": "Нужен хотя бы один идентификатор знания",
+    "ai.attachment_other_organization": "Вложение принадлежит другой организации",
+    "ai.category_cycle": "Категорию нельзя перенести внутрь себя",
+    "ai.category_name_required": "Укажите название категории",
+    "ai.category_names_strings": "Названия категорий — непустые строки",
+    "ai.category_other_organization": "Категория принадлежит другой организации",
+    "ai.category_path_not_found": "Путь категории не найден",
+    "ai.category_path_required": "«categoryPath» — непустой список",
+    "ai.category_with_children": "Сначала перенесите вложенные категории",
+    "ai.category_with_knowledge": "Сначала перенесите знания из категории",
+    "ai.channel_required": "Укажите канал",
+    "ai.content_required": "Поле «content» обязательно",
+    "ai.description_string": "Поле «description» — строка",
+    "ai.document_object_required": "Документ должен быть объектом",
+    "ai.expected_attach_or_detach": "Ожидается attach или detach",
+    "ai.file_name_required": "Имя файла обязательно",
+    "ai.file_too_large_25": "Файл больше 25 МБ",
+    "ai.integration_model_required": "У интеграции не задана модель по умолчанию",
+    "ai.knowledge_ids_integers": "Идентификаторы знаний — целые числа",
+    "ai.knowledge_other_organization": "Знание принадлежит другой организации",
+    "ai.knowledge_unknown_or_unavailable": "Знание неизвестно или недоступно",
+    "ai.list_of_ids": "Нужен список идентификаторов",
+    "ai.list_of_knowledge_ids": "Нужен список идентификаторов знаний",
+    "ai.parent_category_not_found": "Родительская категория не найдена",
+    "ai.parent_category_other_organization": "Родительская категория принадлежит другой организации",
+    "ai.system_category_immutable": "Системная категория не изменяется",
+    "ai.system_category_name_immutable": "Название системной категории не меняется",
+    "ai.system_category_undeletable": "Системную категорию нельзя удалить",
+    "ai.unknown_knowledge_item": "Неизвестное знание",
+    "ai.unknown_portal_article": "Неизвестная статья портала",
+    "ai.unknown_provider_integration": "Неизвестная интеграция OpenRouter или Custom",
+    "api.at_least_one_id": "Нужен хотя бы один идентификатор",
+    "api.boolean_required": "Нужно булево значение",
+    "api.integer_id_required": "Нужен целочисленный идентификатор",
+    "api.integer_required": "Нужно целое число",
+    "api.list_of_ids_required": "Нужен список идентификаторов",
+    "api.object_required": "Нужен объект",
+    "api.positive_id_required": "Нужен положительный целочисленный идентификатор",
+    "channels.agent_exists": "У канала уже есть AI-агент",
+    "channels.not_found": "Канал не найден",
+    "channels.unknown_group": "Неизвестная группа",
+    "conversations.file_download_unsupported": "Этот канал не поддерживает скачивание файлов",
+    "conversations.telegram_getfile_failed": "Telegram не отдал файл",
+    "conversations.voice_download_unsupported": "Этот канал не поддерживает скачивание голосовых",
+    "portals.article_object_required": "Статья должна быть объектом",
+    "portals.locale_string": "Поле «locale» — строка",
+    "portals.summary_string": "Поле «summary» — строка",
+    "portals.widget_channel_mismatch": "Виджет и канал не совпадают",
+    "portals.widget_needs_anonymous": "Виджет портала должен допускать анонимные сессии",
+    "portals.widget_needs_channel": "Виджет портала должен быть привязан к каналу",
+    "settings.allowed_origins_list": "allowedOrigins — список строк",
+    "settings.api_key_required": "Укажите API-ключ",
+    "settings.custom_base_url_required": "Укажите Base URL",
+    "settings.custom_model_required": "Укажите модель",
+    "settings.email_hosts_required": "Укажите адрес, IMAP- и SMTP-сервер",
+    "settings.email_not_a_bot": "Почта не может быть ботом уведомлений",
+    "settings.inactive_channel": "Неактивный канал не принимает подключения",
+    "settings.integration_other_organization": "Интеграция принадлежит другой организации",
+    "settings.mailbox_password_required": "Укажите пароль ящика",
+    "settings.name_required": "Укажите название",
+    "settings.ports_numbers": "Порты — числа",
+    "settings.quick_replies_list": "quickReplies — список строк",
+    "settings.unknown_provider": "Неизвестный провайдер",
+    "ai.field_required": "Поле «{field}» обязательно",
+    "ai.unexpected_provider_response": "Неожиданный ответ провайдера: {error}",
+    "settings.base_url_rejected": "Base URL: {error}",
+    "settings.proxy_url_rejected": "Прокси: {error}",
+    "notifications.type_dialog_waiting": "Диалог ждёт оператора",
+    "notifications.type_dialog_new_message": "Новое сообщение в диалоге",
+    "notifications.type_release_published": "Опубликован релиз агента",
+    "notifications.type_integration_error": "Ошибка интеграции",
+    "integrations.check_no_connection": "Нет связи: {error}",
+    "integrations.check_api_key_missing": "Не указан API-ключ",
+    "integrations.check_base_url_missing": "Не указан Base URL",
+    "integrations.check_bot_token_missing": "Не указан токен бота",
+    "integrations.check_mailbox_password_missing": "Не указан пароль ящика",
+    "integrations.check_mail_hosts_missing": "Не заполнены адрес, IMAP- или SMTP-хост",
+    "integrations.check_provider_answered": "{provider} ответил {status}",
+    "integrations.check_endpoint_answered": "Эндпоинт ответил {status}",
+    "integrations.check_key_accepted": "ключ принят",
+    "integrations.check_bot_connected": "бот подключён",
+    "integrations.check_demo": "Демо-провайдер: отвечает по знаниям агента, без внешних запросов и ключей",
+    "integrations.check_unsupported": "Проверка для этого типа подключения не поддерживается",
+    "integrations.check_web_not_bound": "Подключение не привязано к каналу — виджет не активен",
+    "integrations.check_web_no_config": "Конфигурация Web-виджета не создана",
+    "integrations.check_web_no_origins": "Не заданы разрешённые домены — виджет будет недоступен на сайте",
+    "integrations.check_web_active": "Web-виджет активен · канал «{channel}»",
+    "integrations.check_endpoint_models": {"one": "Эндпоинт отвечает: {count} модель", "few": "Эндпоинт отвечает: {count} модели", "many": "Эндпоинт отвечает: {count} моделей", "other": "Эндпоинт отвечает: {count} модели"},
+    "identity.password_help": "Пароль должен содержать букву, цифру и спецсимвол.",
+    "conversations.attachment_too_large": "Файл больше 20 МБ",
+    "conversations.attachment_empty": "Пустой файл",
+    "conversations.attachment_type_blocked": "Такой тип файла отправить нельзя",
+    "settings.s3_bucket_required": "Укажите имя бакета",
+    "settings.s3_endpoint_scheme": "Адрес должен начинаться с http:// или https://",
+    "settings.s3_access_key_required": "Укажите Access Key",
+    "settings.s3_secret_key_required": "Укажите Secret Key",
+    "channels.binding_conflict": "Подключение уже привязано к другому каналу: перенос требует force",
+    "channels.operation_needs_manage": "{operation} требует channels.manage",
+    "channels.operation_status_change": "Изменение статуса канала",
+    "channels.operation_policy_change": "Изменение политики канала",
+    "conversations.dialog_status_closed": "Закрыт",
+    "conversations.dialog_status_operator": "Оператор",
+    "conversations.dialog_status_wait": "Ждёт оператора",
+    "setup.your_name_required": "Укажите ваше имя",
+    "setup.your_name_too_long": "Имя длиннее 255 символов",
+    "setup.email_invalid": "Укажите корректный e-mail",
+    "setup.check_fields": "Проверьте заполненные поля",
+    "setup.owner_position": "Владелец",
+    "ai.agent_without_llm_integration": "Агент не привязан к LLM-интеграции BYOK; выберите провайдера в настройках агента",
+    "ai.integration_is_not_llm": "Интеграция «{provider}» не является LLM-провайдером BYOK",
+    "settings.url_scheme_required": "Адрес должен начинаться с одной из схем: {schemes}",
+    "settings.download_http_only": "Скачивать можно только по http/https",
+    "settings.url_points_inside": "Адрес ведёт во внутреннюю сеть",
+    "settings.scheme_forbidden": "Схема {scheme} в исходящих запросах запрещена",
+    "conversations.contact_request": "Поделитесь, пожалуйста, контактом — нажмите кнопку ниже.",
+    "conversations.contact_request_web": "Поделитесь, пожалуйста, номером телефона.",
+    "calls.invite_text": "Приглашаем вас на {kind}. Нажмите кнопку, чтобы перейти к звонку.",
+    "conversations.email_default_subject": "Ваше обращение",
+    "conversations.voice_message": "Голосовое сообщение",
+    "conversations.file_caption": "Файл: {name}",
+    "webchat.default_greeting": "Здравствуйте! Готов помочь и ответить на вопросы. Чем можем помочь?",
+    "webchat.default_consent": "Продолжая, вы соглашаетесь на обработку сообщений для ответа на обращение.",
+    "webchat.guest_name": "Гость · {code}",
+    "channels.operation_agent_create": "Создание агента",
+    "channels.operation_agent_delete": "Удаление агента",
+    "identity.browser_unknown": "Браузер",
+    "settings.mail_test_subject": "Проверка почты Chatballs",
+    "settings.mail_test_body": "Это тестовое письмо из «Настроек». Если вы его читаете, почта установки работает.",
+    "notifications.binding_done": "Готово! Уведомления Chatballs подключены. Отключить можно в профиле.",
+    "notifications.binding_hint": "Это сервисный бот уведомлений Chatballs. Чтобы подключить уведомления, откройте профиль в Chatballs и нажмите «Подключить».",
+    "conversations.button_share_contact": "Поделиться контактом",
+    "conversations.button_join_call": "Перейти к звонку",
+    "ai.demo_handover": "Уточню этот вопрос у коллег и передам диалог сотруднику — он ответит в рабочее время.",
+    "ai.demo_handover_suffix": " Передаю диалог сотруднику — он поможет дальше.",
+    "ai.unknown_answer_language": "Неизвестный язык ответов агента",
 }

apps/backend/chatballs/i18n/tests.py

@@ -49,6 +49,40 @@ class CatalogTests(SimpleTestCase):
                     names(russian), names(table[key]), f"{key}: расходятся параметры в {code}"
                 )
 
+    def test_every_key_used_in_code_exists(self) -> None:
+        """Вызов t() без ключа в каталоге молча печатает сам ключ.
+
+        Так уже случалось: строки заменили на вызовы, а ключи в каталог
+        дописать забыли — и вместо текста в ответе поехало «channels.
+        connection_not_found». Ошибка не падает и в логах не видна, поэтому
+        ищется здесь, обходом исходников.
+        """
+
+        import ast
+
+        root = pathlib.Path(__file__).resolve().parents[1]
+        known = set(CATALOG[DEFAULT_LANGUAGE])
+        unknown: list[str] = []
+        for source in root.rglob("*.py"):
+            # Каталог — это сами словари; тесты намеренно зовут несуществующий
+            # ключ, проверяя фолбэк.
+            if "__pycache__" in source.parts or source.parts[-2:-1] == ("messages",):
+                continue
+            if "test" in source.name:
+                continue
+            for node in ast.walk(ast.parse(source.read_text(encoding="utf-8"))):
+                if not isinstance(node, ast.Call):
+                    continue
+                if getattr(node.func, "id", "") not in ("t", "tn") or not node.args:
+                    continue
+                first = node.args[0]
+                # Ключ, собранный из выражения, проверить статически нельзя —
+                # такие места отвечают за себя сами (см. _system_text).
+                if isinstance(first, ast.Constant) and isinstance(first.value, str):
+                    if first.value not in known:
+                        unknown.append(f"{source.name}:{node.lineno} {first.value}")
+        self.assertEqual(unknown, [], "ключи вызываются, но в каталоге их нет")
+
     def test_unknown_key_returns_itself(self) -> None:
         self.assertEqual(t("нет.такого.ключа"), "нет.такого.ключа")
 

apps/backend/chatballs/identity/administration_payloads.py

@@ -4,6 +4,7 @@ from zoneinfo import available_timezones
 
 from django.urls import reverse
 
+from chatballs.i18n import t
 from chatballs.i18n.languages import LANGUAGES
 from chatballs.identity.audit_catalog import (
     audit_action_label,
@@ -83,7 +84,7 @@ def audit_event_payload(event: AuditEvent) -> dict[str, object]:
         "id": event.id,
         "createdAt": event.created_at.isoformat(),
         "actorId": actor.id if actor is not None else None,
-        "actor": ((actor.full_name or actor.email) if actor is not None else "Система"),
+        "actor": ((actor.full_name or actor.email) if actor is not None else t("admin.actor_system")),
         "actorEmail": (actor.email if actor is not None else ""),
         "action": event.action,
         "actionLabel": audit_action_label(event.action),

apps/backend/chatballs/identity/administration_services.py

@@ -98,10 +98,10 @@ def replace_organization_logo(
     if not data:
         raise ValidationError({"file": t("admin.choose_logo_file")})
     if len(data) > MAX_LOGO_BYTES:
-        raise ValidationError({"file": "Размер логотипа не должен превышать 2 МБ"})
+        raise ValidationError({"file": t("admin.logo_too_large")})
     detected = _image_type(data)
     if detected is None:
-        raise ValidationError({"file": "Поддерживаются PNG, JPEG и WebP"})
+        raise ValidationError({"file": t("admin.image_formats")})
     content_type, suffix = detected
     organization = Organization.objects.select_for_update().get(
         pk=context.organization_id

apps/backend/chatballs/identity/administration_views.py

@@ -42,7 +42,7 @@ def _validation_response(error: ValidationError) -> Response:
             key: messages[0] if isinstance(messages, list) else str(messages)
             for key, messages in error.message_dict.items()
         }
-        detail = next(iter(payload.values()), "Проверьте заполненные поля")
+        detail = next(iter(payload.values()), t("setup.check_fields"))
         return Response({"detail": detail, "errors": payload}, status=400)
     return Response({"detail": "; ".join(error.messages)}, status=400)
 
@@ -282,7 +282,7 @@ def _audit_actors(base) -> list[dict[str, object]]:
     ]
     actors.sort(key=lambda item: str(item["label"]).lower())
     if base.filter(actor__isnull=True).exists():
-        actors.append({"value": "system", "label": "Система"})
+        actors.append({"value": "system", "label": t("admin.actor_system")})
     return actors
 
 

apps/backend/chatballs/identity/auth/invitations.py

@@ -5,6 +5,7 @@ from rest_framework.request import Request
 from rest_framework.response import Response
 from rest_framework.views import APIView
 
+from chatballs.i18n import t
 from chatballs.identity.auth.common import _user_payload
 from chatballs.identity.invitation_service import InvitationError, accept_invitation
 
@@ -23,7 +24,7 @@ class InvitationAcceptView(APIView):
     def post(self, request: Request) -> Response:
         token = str(request.data.get("token", "")).strip()
         if not token:
-            return Response({"detail": "token is required"}, status=400)
+            return Response({"detail": t("identity.token_required")}, status=400)
         try:
             accept_invitation(token=token, user=request.user)
         except InvitationError as error:

apps/backend/chatballs/identity/auth/profile.py

@@ -28,11 +28,11 @@ class ProfileUpdateView(APIView):
         full_name = str(body.get("fullName", "")).strip()
         email = HumanUser.objects.normalize_email(str(body.get("email", "")).strip())
         if not full_name:
-            return Response({"detail": "Full name is required"}, status=400)
+            return Response({"detail": t("admin.full_name_required")}, status=400)
         if not email:
-            return Response({"detail": "Email is required"}, status=400)
+            return Response({"detail": t("admin.email_required")}, status=400)
         if HumanUser.objects.exclude(id=request.user.id).filter(email=email).exists():
-            return Response({"detail": "Email is already used"}, status=400)
+            return Response({"detail": t("admin.email_taken")}, status=400)
 
         request.user.full_name = full_name
         request.user.email = email
@@ -97,7 +97,7 @@ class ProfilePasswordView(APIView):
         current_password = str(body.get("currentPassword", ""))
         new_password = str(body.get("newPassword", ""))
         if not request.user.check_password(current_password):
-            return Response({"detail": "Current password is invalid"}, status=400)
+            return Response({"detail": t("profile.current_password_invalid")}, status=400)
         try:
             validate_password(new_password, user=request.user)
         except DjangoValidationError as error:
@@ -150,10 +150,10 @@ class ProfileTotpDisableView(APIView):
     def post(self, request: Request) -> Response:
         current_password = str(request.data.get("currentPassword", ""))
         if not request.user.check_password(current_password):
-            return Response({"detail": "Current password is invalid"}, status=400)
+            return Response({"detail": t("profile.current_password_invalid")}, status=400)
 
         if user_requires_totp(request.user.id):
-            return Response({"detail": "TOTP is required by an organization policy"}, status=409)
+            return Response({"detail": t("profile.totp_required_by_policy")}, status=409)
         request.user.totp_enabled = False
         request.user.totp_secret = ""
         request.user.save(update_fields=["totp_enabled", "totp_secret"])
@@ -199,7 +199,7 @@ class ChangeTemporaryPasswordView(APIView):
         current_password = str(body.get("currentPassword", ""))
         new_password = str(body.get("newPassword", ""))
         if not request.user.must_change_password and not request.user.check_password(current_password):
-            return Response({"detail": "Current password is invalid"}, status=400)
+            return Response({"detail": t("profile.current_password_invalid")}, status=400)
         try:
             validate_password(new_password, user=request.user)
         except DjangoValidationError as error:

apps/backend/chatballs/identity/auth/sessions.py

@@ -9,7 +9,7 @@ from rest_framework.response import Response
 from rest_framework.throttling import ScopedRateThrottle
 from rest_framework.views import APIView
 
-from chatballs.i18n import current_language
+from chatballs.i18n import current_language, t
 from chatballs.identity.audit import record_audit_event
 from chatballs.identity.auth.common import _challenge_payload, _user_payload
 from chatballs.identity.auth.totp_utils import TOTP_SESSION_KEY, TOTP_STARTED_KEY
@@ -48,7 +48,7 @@ class LoginView(APIView):
         user = authenticate(request, username=email, password=password)
         if user is None:
             record_audit_event(action="identity.login_failed", result=AuditResult.DENIED, request=request)
-            return Response({"detail": "Invalid credentials"}, status=401)
+            return Response({"detail": t("identity.invalid_credentials")}, status=401)
         if user.totp_enabled:
             request.session[TOTP_SESSION_KEY] = user.id
             # Шаг с кодом ждёт не вечно: см. TOTP_CHALLENGE_TTL_SECONDS.

apps/backend/chatballs/identity/auth/totp.py

@@ -10,6 +10,7 @@ from rest_framework.response import Response
 from rest_framework.throttling import ScopedRateThrottle
 from rest_framework.views import APIView
 
+from chatballs.i18n import t
 from chatballs.identity.audit import record_audit_event
 from chatballs.identity.auth.common import _user_payload
 from chatballs.identity.auth.totp_utils import (
@@ -43,7 +44,7 @@ class TotpSetupView(APIView):
 
     def get(self, request: Request) -> Response:
         if request.user.totp_enabled:
-            return Response({"detail": "TOTP is already enabled"}, status=400)
+            return Response({"detail": t("profile.totp_enabled_already")}, status=400)
 
         secret = _ensure_totp_secret(request.user)
         account_name = request.user.email
@@ -76,7 +77,7 @@ class TotpConfirmView(APIView):
                 result=AuditResult.DENIED,
                 request=request,
             )
-            return Response({"detail": "Invalid TOTP code"}, status=400)
+            return Response({"detail": t("identity.invalid_totp_code")}, status=400)
 
         request.user.totp_enabled = True
         request.user.save(update_fields=["totp_enabled"])
@@ -99,7 +100,7 @@ class TotpVerifyView(APIView):
         pending_user_id = request.session.get(TOTP_SESSION_KEY)
         if not pending_user_id or _challenge_expired(request):
             _drop_challenge(request)
-            return Response({"detail": "TOTP challenge is not active"}, status=401)
+            return Response({"detail": t("identity.totp_challenge_inactive")}, status=401)
 
         try:
             # is_active обязателен: пароль приняли раньше, и без этой проверки
@@ -109,7 +110,7 @@ class TotpVerifyView(APIView):
             )
         except HumanUser.DoesNotExist:
             _drop_challenge(request)
-            return Response({"detail": "TOTP challenge is not active"}, status=401)
+            return Response({"detail": t("identity.totp_challenge_inactive")}, status=401)
 
         if not user.totp_enabled or not accept_totp_code(
             user, str(request.data.get("code", ""))
@@ -120,7 +121,7 @@ class TotpVerifyView(APIView):
                 result=AuditResult.DENIED,
                 request=request,
             )
-            return Response({"detail": "Invalid TOTP code"}, status=400)
+            return Response({"detail": t("identity.invalid_totp_code")}, status=400)
 
         # Отметку «последний код принят …» для карточки 2FA (кадр P1) уже
         # проставил accept_totp_code вместе с номером интервала.

apps/backend/chatballs/identity/avatars.py

@@ -68,10 +68,10 @@ def replace_user_avatar(user: HumanUser, upload: UploadedFile) -> HumanUser:
     if not data:
         raise ValidationError({"file": t("profile.choose_photo_file")})
     if len(data) > MAX_AVATAR_BYTES:
-        raise ValidationError({"file": "Размер фото не должен превышать 2 МБ"})
+        raise ValidationError({"file": t("profile.photo_too_large")})
     detected = image_type(data)
     if detected is None:
-        raise ValidationError({"file": "Поддерживаются PNG, JPEG и WebP"})
+        raise ValidationError({"file": t("admin.image_formats")})
     content_type, suffix = detected
     return set_user_avatar(user, data, content_type, suffix)
 

apps/backend/chatballs/identity/demo_seed/data/en/channels_ai.json

@@ -0,0 +1,384 @@
+{
+  "schemaVersion": 1,
+  "_comment": "English twin of data/ru/channels_ai.json. Agents = cards over Channel+AIAgent (ADR-HUB-0041 §4). Connections are dialog entry points; the LLM provider is shared across the organization (BYOK). There are two web widgets: the anonymous one on the site (agent «Consultant») and the authenticated one in the customer account (agent «Site support», mandatory-identity policy — SPEC-HUB-0027 P4/P5). The demo LLM provider is the built-in «Demo provider» (no key): agents answer from the knowledge base straight after installation.",
+  "llmProvider": {
+    "key": "llm",
+    "provider": "DEMO",
+    "name": "Demo provider",
+    "secret": "",
+    "config": {},
+    "status": "OK"
+  },
+  "agents": [
+    {
+      "key": "consultant",
+      "code": "consultant",
+      "name": "Consultant",
+      "group": "operators",
+      "aiStatus": "ACTIVE",
+      "persona": "You are a consultant at Nord Atelier. The atelier makes curtains, voile and home textiles to measure and delivers across the country.",
+      "tone": "Friendly, brief, no officialese. Use the client's name if they have given it.",
+      "instructions": "Answer only from the atelier's knowledge. Quote lead times, prices and order status only from the knowledge base; if there is no answer, say you will check with colleagues and hand the dialog to a member of staff. Do not promise discounts. If the client asks for a human, hand the dialog over straight away.",
+      "knowledge": [
+        "pricing",
+        "fabrics",
+        "measure",
+        "delivery",
+        "care"
+      ],
+      "portalArticles": [
+        "how-to-measure",
+        "lead-times"
+      ],
+      "limits": {
+        "dailyCostUsd": 300
+      },
+      "createdDaysAgo": 41
+    },
+    {
+      "key": "support",
+      "code": "site-support",
+      "name": "Site support",
+      "group": "support",
+      "aiStatus": "ACTIVE",
+      "persona": "You are the support assistant for the Nord Atelier website: accounts, orders, payment, delivery, returns.",
+      "tone": "Calm and to the point.",
+      "instructions": "Check the knowledge about accounts and returns first. For questions about a specific order with no order number, ask for the number. Complaints about quality go to a member of staff with a note.",
+      "knowledge": [
+        "delivery",
+        "returns",
+        "account"
+      ],
+      "portalArticles": [
+        "returns-and-exchanges",
+        "your-account"
+      ],
+      "limits": {},
+      "createdDaysAgo": 30,
+      "policy": {
+        "allow_anonymous_sessions": true,
+        "allow_self_reported_contact": true
+      }
+    },
+    {
+      "key": "portal",
+      "code": "portal",
+      "name": "Customer account",
+      "group": "support",
+      "aiStatus": "ACTIVE",
+      "persona": "You are the assistant for the Nord Atelier customer account: orders, payment, statuses, delivery, returns.",
+      "tone": "Calm and to the point.",
+      "instructions": "Rely on the knowledge about accounts and orders. Ask for the order number if it has not been given. Complaints about payment go to a member of staff.",
+      "knowledge": [
+        "account",
+        "delivery",
+        "returns"
+      ],
+      "portalArticles": [
+        "your-account",
+        "returns-and-exchanges"
+      ],
+      "limits": {},
+      "createdDaysAgo": 28,
+      "policy": {
+        "allow_anonymous_sessions": true,
+        "allow_self_reported_contact": true
+      }
+    },
+    {
+      "key": "reception",
+      "code": "reception",
+      "name": "Front desk",
+      "group": null,
+      "aiStatus": "DRAFT",
+      "persona": "",
+      "tone": "",
+      "instructions": "",
+      "knowledge": [],
+      "portalArticles": [],
+      "limits": {},
+      "createdDaysAgo": 3
+    },
+    {
+      "key": "legacy",
+      "code": "old-line",
+      "name": "Old line (Instagram)",
+      "group": "vip",
+      "isActive": false,
+      "aiStatus": "DISABLED",
+      "persona": "Atelier consultant.",
+      "tone": "",
+      "instructions": "This channel was closed in the spring of 2026.",
+      "knowledge": [
+        "pricing"
+      ],
+      "portalArticles": [],
+      "limits": {},
+      "createdDaysAgo": 180
+    }
+  ],
+  "connections": [
+    {
+      "key": "tg",
+      "provider": "TELEGRAM",
+      "name": "Telegram · @NordAtelierBot",
+      "agent": "consultant",
+      "status": "OK",
+      "secret": "0000000000:DEMO-token-not-real",
+      "config": {
+        "username": "NordAtelierBot"
+      },
+      "createdDaysAgo": 40
+    },
+    {
+      "key": "max",
+      "provider": "MAX",
+      "name": "MAX · Nord Atelier",
+      "agent": "consultant",
+      "status": "OK",
+      "secret": "demo-max-token",
+      "config": {},
+      "createdDaysAgo": 25
+    },
+    {
+      "key": "email",
+      "provider": "EMAIL",
+      "name": "Mail · info@nord-atelier.com",
+      "agent": "support",
+      "status": "OK",
+      "secret": "demo-imap-password",
+      "config": {
+        "email": "info@nord-atelier.com",
+        "imapHost": "imap.nord-atelier.com",
+        "smtpHost": "smtp.nord-atelier.com"
+      },
+      "createdDaysAgo": 29
+    },
+    {
+      "key": "web",
+      "provider": "WEB",
+      "name": "Web Chat · nord-atelier.com",
+      "agent": "consultant",
+      "status": "OK",
+      "config": {
+        "title": "Nord Atelier",
+        "greeting": "Hello! We can help with fabrics, lead times and orders.",
+        "quick_replies": [
+          "Lead times",
+          "Order status",
+          "Returns"
+        ],
+        "allowed_origins": [
+          "https://nord-atelier.com"
+        ]
+      },
+      "createdDaysAgo": 28
+    },
+    {
+      "key": "web_help",
+      "provider": "WEB",
+      "name": "Web Chat · Help section",
+      "agent": "support",
+      "status": "OK",
+      "config": {
+        "title": "Nord Atelier",
+        "greeting": "Hello! We can help with fabrics, lead times and orders.",
+        "quick_replies": [
+          "Lead times",
+          "Order status",
+          "Returns"
+        ],
+        "allowed_origins": [
+          "https://nord-atelier.com"
+        ]
+      },
+      "createdDaysAgo": 28
+    },
+    {
+      "key": "web_account",
+      "provider": "WEB",
+      "name": "Web Chat · customer account",
+      "agent": "portal",
+      "status": "OK",
+      "config": {
+        "title": "Support · Nord Atelier",
+        "greeting": "Hello! We can see your order — how can we help?",
+        "quick_replies": [
+          "Order status",
+          "Change the address",
+          "Returns"
+        ],
+        "allowed_origins": [
+          "https://nord-atelier.com",
+          "https://account.nord-atelier.com"
+        ]
+      },
+      "createdDaysAgo": 27
+    },
+    {
+      "key": "tg_delivery",
+      "provider": "TELEGRAM",
+      "name": "Telegram · delivery bot",
+      "agent": "reception",
+      "status": "ERROR",
+      "lastError": "401 Unauthorized: bot token was revoked in @BotFather",
+      "secret": "1111111111:DEMO-revoked",
+      "config": {
+        "username": "NordAtelierDeliveryBot"
+      },
+      "createdDaysAgo": 3
+    }
+  ],
+  "knowledgeCategories": [
+    {
+      "key": "sewing",
+      "name": "Making and fabrics",
+      "children": [
+        {
+          "key": "measure",
+          "name": "Measuring and quotes"
+        },
+        {
+          "key": "fabrics",
+          "name": "Fabrics"
+        }
+      ]
+    },
+    {
+      "key": "orders",
+      "name": "Orders and delivery",
+      "children": [
+        {
+          "key": "delivery",
+          "name": "Delivery"
+        },
+        {
+          "key": "returns",
+          "name": "Returns and exchanges"
+        }
+      ]
+    },
+    {
+      "key": "site",
+      "name": "Website and customer account"
+    }
+  ],
+  "knowledge": [
+    {
+      "key": "pricing",
+      "category": "measure",
+      "title": "Quoting for made-to-measure curtains",
+      "description": "The pricing formula, fullness ratios, minimum order",
+      "content": "Price = fabric (metres × price per metre) + making (by the finished width) + hardware.\n\nFullness ratio: 1.5 for heavy curtains, 2.0–2.5 for voile. Fabric width including fullness = track width × ratio.\n\nMaking: £18 per linear metre of finished width for curtains, £14 for voile. The bottom hem is included. Eyelets — £3.50 each, heading tape — £4.80 per metre.\n\nMinimum order — £120. The consultant quotes from the window width and drop; a measuring visit within London is free on orders over £600.",
+      "attachments": [
+        "price-estimate.md"
+      ],
+      "createdDaysAgo": 40
+    },
+    {
+      "key": "fabrics",
+      "category": "fabrics",
+      "title": "Fabric catalogue 2026",
+      "description": "Curtain and voile fabrics in stock, prices per metre",
+      "content": "Curtain fabrics: Nord blackout (100% blackout, £59/m, 14 colours), linen blend (£35/m, 9 colours), Verona velvet (£87/m, 6 colours), canvas (£27/m, 12 colours).\n\nVoile: sheer voile (£15/m), Greek net (£20/m), linen voile (£29/m).\n\nEvery fabric is 280–300 cm wide. We post samples free of charge — up to 5 of them.",
+      "attachments": [
+        {
+          "file": "fabric-catalogue-2026.pdf",
+          "text": "fabric-catalogue-2026.txt",
+          "contentType": "application/pdf"
+        }
+      ],
+      "createdDaysAgo": 38
+    },
+    {
+      "key": "measure",
+      "category": "measure",
+      "title": "How to measure your windows yourself",
+      "description": "Client instructions: track, drop, allowances",
+      "content": "1. Measure the length of the track from end to end (not the window!).\n2. Measure the drop from the track hook (or the top of the pole) to the length you want: to the sill (minus 1 cm), to the floor (minus 1–2 cm) or puddled on the floor (+3–5 cm).\n3. For eyelet curtains add 3 cm at the top.\n4. Photograph the whole window — a consultant will check the figures.",
+      "attachments": [],
+      "createdDaysAgo": 36
+    },
+    {
+      "key": "delivery",
+      "category": "delivery",
+      "title": "Making times and delivery",
+      "description": "Making 5–7 working days, delivery by DPD and courier",
+      "content": "Making takes 5–7 working days once the quote is agreed and paid. Express making (3 working days) costs +30% of the making price and only if the fabric is in stock.\n\nDelivery: within London by courier £15 (free over £400), slots 10:00–13:00, 13:00–17:00, 17:00–20:00; the courier calls an hour ahead. Across the country — DPD to a pickup point or to your door, 3–5 working days from dispatch, and the tracking number arrives by e-mail on the day of dispatch. Manchester, Birmingham and Leeds are usually 3 days.\n\nMoving a delivery slot is free of charge, no later than 18:00 the day before.",
+      "attachments": [
+        "delivery-and-payment.txt"
+      ],
+      "createdDaysAgo": 35
+    },
+    {
+      "key": "returns",
+      "category": "returns",
+      "title": "Returns and exchanges",
+      "description": "14 days, and the terms for made-to-measure items",
+      "content": "Ready-made items (cushions, throws from the catalogue) — returnable within 14 days with no reason given, provided they have not been used.\n\nItems made to your own measurements cannot be returned (bespoke goods are exempt from the cancellation right under the Consumer Contracts Regulations), except where they are faulty or do not match the agreed order: wrong colour or size, defects in the making. In that case we remake them free of charge or exchange them for another colour in stock, in 5–7 working days; if the client prefers, we refund the money within 10 days.\n\nA claim needs the order number and photographs of the item. The claim is raised by a member of staff, not by the AI.",
+      "attachments": [],
+      "createdDaysAgo": 33
+    },
+    {
+      "key": "care",
+      "category": "fabrics",
+      "title": "Caring for your curtains",
+      "description": "Washing, ironing and cleaning by fabric type",
+      "content": "Blackout: delicate wash at 30°, no spin, iron on the reverse at the lowest temperature. Linen: wash at 40°, shrinkage of up to 3% is allowed for in the measurements. Velvet: dry clean only. Voile: wash at 30° in a mesh bag, dry it on the track.",
+      "attachments": [],
+      "createdDaysAgo": 20
+    },
+    {
+      "key": "account",
+      "category": "site",
+      "title": "The customer account on the website",
+      "description": "Registration, password recovery, order statuses",
+      "content": "You sign in with your e-mail. The password reset message comes from no-reply@nord-atelier.com within 5 minutes; if it has not arrived, check your spam folder and that the address is right. You can ask for another one after 10 minutes.\n\nOrder statuses in the account: “Awaiting payment” → “In production” → “Ready” → “Handed to the courier” → “Delivered”. The delivery address can be changed up to the “Handed to the courier” status — through a support agent.",
+      "attachments": [],
+      "createdDaysAgo": 28
+    },
+    {
+      "key": "old_prices",
+      "category": "measure",
+      "title": "2024 price list (out of date)",
+      "description": "Old prices — switched off, kept for the record",
+      "content": "Making £15/m, voile £11/m. Do not use.",
+      "attachments": [],
+      "isEnabled": false,
+      "createdDaysAgo": 400
+    }
+  ],
+  "usage": {
+    "_comment": "Thirty days of LLM call history for the «AI usage» section: generated from a template.",
+    "days": 30,
+    "chatPerDay": {
+      "consultant": [
+        6,
+        14
+      ],
+      "support": [
+        3,
+        9
+      ],
+      "portal": [
+        1,
+        4
+      ]
+    },
+    "embeddingPerDay": [
+      0,
+      2
+    ],
+    "model": "openai/gpt-4o-mini",
+    "promptTokens": [
+      600,
+      1800
+    ],
+    "completionTokens": [
+      80,
+      260
+    ],
+    "costMicrosPerToken": 0.6,
+    "failuresTotal": 3
+  }
+}

apps/backend/chatballs/identity/demo_seed/data/en/conversations.json

@@ -0,0 +1,954 @@
+{
+  "schemaVersion": 1,
+  "_comment": "English twin of data/ru/conversations.json: the same people, the same dialogs, the same frames — only the prose differs. Seven visible dialogs mirror frames A–H and A1 one for one; Maria's contact history is frame F. The remaining features (the VIP group, HTML mail, the portal and the customer-account snapshot, spam) are covered by archived and spam dialogs that are not in the main list. Time is relative: «now» = the moment of installation.",
+  "contacts": [
+    {
+      "key": "maria",
+      "name": "Maria Sokolova",
+      "phone": "+44 7700 900140",
+      "avatar": "maria-sokolova.jpg",
+      "description": "Order 4471 — a set of curtains. A regular since August, prefers Telegram.",
+      "createdDaysAgo": 34
+    },
+    {
+      "key": "maria-duplicate",
+      "name": "Maria S.",
+      "phone": "+44 7700 900140",
+      "description": "Duplicate: came in from the website, not yet recognised by phone number.",
+      "createdDaysAgo": 12
+    },
+    {
+      "key": "irina",
+      "name": "Irina Levina",
+      "phone": "",
+      "avatar": "irina-levina.jpg",
+      "description": "Textile buyer for a hotel. Asked us to write by e-mail rather than call.",
+      "company": "The Riverside Hotel",
+      "createdDaysAgo": 60
+    },
+    {
+      "key": "artem",
+      "name": "Artem Gusev",
+      "phone": "",
+      "createdDaysAgo": 3
+    },
+    {
+      "key": "olga",
+      "name": "Olga Melnik",
+      "phone": "+44 7700 900731",
+      "avatar": "olga-melnik.jpg",
+      "createdDaysAgo": 12
+    },
+    {
+      "key": "sergey",
+      "name": "Sergey Krylov",
+      "phone": "+44 7700 900912",
+      "avatar": "sergey-krylov.jpg",
+      "city": "Manchester",
+      "createdDaysAgo": 9
+    },
+    {
+      "key": "viktor",
+      "name": "Viktor Panov",
+      "phone": "+44 20 7946 0210",
+      "company": "House of Textiles Ltd",
+      "city": "London",
+      "description": "Wholesale customer: a 46-room hotel. Handled by Kirill Volkov.",
+      "createdDaysAgo": 90
+    },
+    {
+      "key": "polina",
+      "name": "Polina Rakitina",
+      "phone": "",
+      "createdDaysAgo": 1
+    },
+    {
+      "key": "spammer",
+      "name": "",
+      "phone": "",
+      "createdDaysAgo": 0
+    }
+  ],
+  "connectionIdentities": [
+    {
+      "key": "maria_tg",
+      "contact": "maria",
+      "connection": "tg",
+      "externalUserId": "482913001",
+      "displayName": "Maria Sokolova",
+      "username": "maria_s"
+    },
+    {
+      "key": "irina_email",
+      "contact": "irina",
+      "connection": "email",
+      "externalUserId": "irina@housetextiles.example",
+      "displayName": "Irina Levina"
+    },
+    {
+      "key": "artem_max",
+      "contact": "artem",
+      "connection": "max",
+      "externalUserId": "58102277",
+      "displayName": "Artem Gusev"
+    },
+    {
+      "key": "olga_tg",
+      "contact": "olga",
+      "connection": "tg",
+      "externalUserId": "482913004",
+      "displayName": "Olga Melnik",
+      "username": "olga_s"
+    },
+    {
+      "key": "sergey_tg",
+      "contact": "sergey",
+      "connection": "tg",
+      "externalUserId": "482913007",
+      "displayName": "Sergey Krylov",
+      "username": "sergey_s"
+    },
+    {
+      "key": "sergey_web",
+      "contact": "sergey",
+      "connection": "web_account",
+      "externalUserId": "web-sess-4402a",
+      "displayName": "Sergey Krylov"
+    },
+    {
+      "key": "viktor_tg",
+      "contact": "viktor",
+      "connection": "tg",
+      "externalUserId": "482913006",
+      "displayName": "Viktor Panov",
+      "username": "v_panov"
+    },
+    {
+      "key": "polina_email",
+      "contact": "polina",
+      "connection": "email",
+      "externalUserId": "polina.rakitina@example.com",
+      "displayName": "Polina Rakitina"
+    },
+    {
+      "key": "spam_tg",
+      "contact": "spammer",
+      "connection": "tg",
+      "externalUserId": "900000001",
+      "displayName": "Instant Credit",
+      "username": "credit_fast_24"
+    }
+  ],
+  "labels": [
+    {
+      "key": "delivery",
+      "name": "delivery",
+      "color": "#1677ff"
+    },
+    {
+      "key": "return",
+      "name": "returns",
+      "color": "#eb2f96"
+    },
+    {
+      "key": "account",
+      "name": "account",
+      "color": "#13c2c2"
+    },
+    {
+      "key": "address",
+      "name": "address",
+      "color": "#fa8c16"
+    },
+    {
+      "key": "mail",
+      "name": "mail",
+      "color": "#722ed1"
+    },
+    {
+      "key": "order4390",
+      "name": "order 4390",
+      "color": "#52c41a"
+    },
+    {
+      "key": "urgent",
+      "name": "urgent",
+      "color": "#f5222d"
+    },
+    {
+      "key": "vip",
+      "name": "vip",
+      "color": "#b8860b"
+    },
+    {
+      "key": "wholesale",
+      "name": "wholesale",
+      "color": "#0f9d58"
+    }
+  ],
+  "replyTemplates": [
+    {
+      "title": "Greeting",
+      "text": "Hello! My name is {name}, I am a consultant at Nord Atelier. Could you tell me the track width and the window drop — I will work out a quote."
+    },
+    {
+      "title": "Lead times",
+      "text": "Making takes 5–7 working days after payment. An express option in 3 days is possible if the fabric is in stock, at +30% of the making price."
+    },
+    {
+      "title": "DPD delivery",
+      "text": "We send by DPD to a pickup point or to your door, 3–5 working days. The tracking number arrives by e-mail on the day of dispatch, by 19:00."
+    },
+    {
+      "title": "Moving a delivery",
+      "text": "We have moved your delivery to {date}, slot {slot}. The courier will call an hour ahead. Please confirm that the slot works for you."
+    },
+    {
+      "title": "Returns — asking for photos",
+      "text": "I am sorry this happened. Please send the order number and photographs of the item in daylight — I will raise a claim for a remake or an exchange."
+    },
+    {
+      "title": "Fabric samples",
+      "text": "We will post up to 5 samples free of charge. Tell us which fabrics and colours you would like, and the address with the postcode."
+    },
+    {
+      "title": "Closing a dialog",
+      "text": "Glad to have helped! If anything else comes up, write to us — I answer during working hours, 10:00 to 20:00."
+    }
+  ],
+  "conversations": [
+    {
+      "key": "maria_delivery",
+      "agent": "consultant",
+      "connection": "tg",
+      "contact": "maria",
+      "identity": "maria_tg",
+      "externalChatId": "482913001",
+      "lifecycle": "OPEN",
+      "controlMode": "AI",
+      "expectedResponder": "CUSTOMER",
+      "group": "operators",
+      "priority": "HIGH",
+      "labels": [
+        "delivery",
+        "urgent"
+      ],
+      "note": "",
+      "createdMinutesAgo": 12,
+      "lastActivityMinutesAgo": 4,
+      "readBy": [],
+      "previousConversation": "maria_measure",
+      "messages": [
+        {
+          "author": "CONTACT",
+          "text": "Hello! I ordered a set of curtains from you, order number 4471. How long does delivery to Manchester take?",
+          "minutesAgo": 12
+        },
+        {
+          "author": "AI",
+          "text": "Hello, Maria. Delivery to Manchester takes 3–5 working days from dispatch. Order 4471 is being made at the moment — we expect to send it on Thursday.",
+          "minutesAgo": 12
+        },
+        {
+          "author": "CONTACT",
+          "text": "Can it be sped up? I need it by Saturday.",
+          "minutesAgo": 5
+        },
+        {
+          "author": "AI",
+          "text": "I understand. Express delivery is possible, but the terms are best checked with a specialist — I am passing the question to my colleagues.",
+          "minutesAgo": 5
+        },
+        {
+          "author": "CONTACT",
+          "text": "All right, I will wait",
+          "minutesAgo": 4
+        }
+      ]
+    },
+    {
+      "key": "dmitry_custom",
+      "agent": "consultant",
+      "connection": "web",
+      "webGuest": true,
+      "guestName": "Dmitry Orlov",
+      "guestAvatar": "dmitry-orlov.png",
+      "lifecycle": "OPEN",
+      "controlMode": "PAUSED",
+      "expectedResponder": "OPERATOR",
+      "group": "operators",
+      "priority": "MEDIUM",
+      "labels": [],
+      "note": "",
+      "createdMinutesAgo": 12,
+      "lastActivityMinutesAgo": 6,
+      "readBy": [],
+      "messages": [
+        {
+          "author": "CONTACT",
+          "text": "Good afternoon. Can I order curtains made to my own measurements?",
+          "minutesAgo": 12
+        },
+        {
+          "author": "AI",
+          "text": "Good afternoon! Yes, we make to measure. Tell me the window width and drop and I will work out the price.",
+          "minutesAgo": 11.7
+        },
+        {
+          "author": "CONTACT",
+          "text": "I would like to talk to a human",
+          "minutesAgo": 6
+        },
+        {
+          "author": "SYSTEM",
+          "text": "The AI handed the dialog over: the client asked for a member of staff",
+          "minutesAgo": 6
+        }
+      ]
+    },
+    {
+      "key": "irina_status",
+      "agent": "support",
+      "connection": "email",
+      "contact": "irina",
+      "identity": "irina_email",
+      "externalChatId": "irina@housetextiles.example",
+      "lifecycle": "OPEN",
+      "controlMode": "HUMAN",
+      "expectedResponder": "CUSTOMER",
+      "assignedOperator": "elena",
+      "group": "support",
+      "priority": "HIGH",
+      "labels": [
+        "order4390",
+        "mail"
+      ],
+      "note": "A regular, order 4390. Asked us to write by e-mail rather than call.",
+      "createdMinutesAgo": 54,
+      "lastActivityMinutesAgo": 26,
+      "readBy": [
+        "elena"
+      ],
+      "transportMeta": {
+        "subject": "Order 4390 — the status is not changing"
+      },
+      "messages": [
+        {
+          "author": "CONTACT",
+          "text": "Hello. Order 4390 was paid for a week ago and the status is not changing. What is going on?",
+          "minutesAgo": 54,
+          "contentHtml": "<p>Hello.</p><p>Order <b>4390</b> was paid for a week ago and the status is not changing. What is going on?</p><p>— Irina Levina, purchasing</p>"
+        },
+        {
+          "author": "AI",
+          "text": "Hello, Irina. I can see order 4390 with the status “In production”. I will check the timing with my colleagues — passing the question on.",
+          "minutesAgo": 54,
+          "contentHtml": "<p>Hello, Irina.</p><p>I can see order 4390 with the status “In production”. I will check the timing with my colleagues — passing the question on.</p>"
+        },
+        {
+          "author": "SYSTEM",
+          "text": "Elena Kuznetsova took the dialog",
+          "minutesAgo": 43
+        },
+        {
+          "author": "OPERATOR",
+          "text": "Good afternoon, Irina. I have checked: the order has already gone to the courier, and the tracking number will arrive by e-mail today before 19:00.",
+          "minutesAgo": 26,
+          "authorUser": "elena",
+          "contentHtml": "<p>Good afternoon, Irina.</p><p>I have checked: the order has already gone to the courier, and the tracking number will arrive by e-mail today before 19:00.</p>"
+        }
+      ]
+    },
+    {
+      "key": "artem_prepay",
+      "agent": "consultant",
+      "connection": "max",
+      "contact": "artem",
+      "identity": "artem_max",
+      "externalChatId": "58102277",
+      "lifecycle": "OPEN",
+      "controlMode": "AI",
+      "expectedResponder": "CUSTOMER",
+      "priority": "NONE",
+      "labels": [],
+      "note": "",
+      "createdMinutesAgo": 52,
+      "lastActivityMinutesAgo": 43,
+      "readBy": [
+        "elena",
+        "anna"
+      ],
+      "messages": [
+        {
+          "author": "CONTACT",
+          "text": "Hello! I would like to order Roman blinds for the kitchen, two windows. How does payment work?",
+          "minutesAgo": 52
+        },
+        {
+          "author": "CONTACT",
+          "kind": "voice",
+          "voice": {
+            "file": "artem-prepayment.ogg",
+            "contentType": "audio/ogg",
+            "durationSeconds": 4,
+            "transcriptStatus": "READY",
+            "transcript": "What deposit do you take? Ideally give it to me as a percentage."
+          },
+          "minutesAgo": 50
+        },
+        {
+          "author": "AI",
+          "text": "Hello, Artem! The deposit is 50% when you place the order, and the rest after the fitting, before delivery. You can pay by card or by bank transfer.",
+          "minutesAgo": 49
+        },
+        {
+          "author": "CONTACT",
+          "text": "Thanks, got it",
+          "minutesAgo": 43
+        }
+      ]
+    },
+    {
+      "key": "guest_password",
+      "agent": "support",
+      "connection": "web_help",
+      "webGuest": true,
+      "lifecycle": "OPEN",
+      "controlMode": "HUMAN",
+      "expectedResponder": "CUSTOMER",
+      "assignedOperator": "anna",
+      "group": "support",
+      "priority": "LOW",
+      "labels": [
+        "account"
+      ],
+      "note": "",
+      "createdMinutesAgo": 94,
+      "lastActivityMinutesAgo": 77,
+      "readBy": [
+        "anna"
+      ],
+      "messages": [
+        {
+          "author": "CONTACT",
+          "text": "The password reset e-mail for my account never arrives",
+          "minutesAgo": 94
+        },
+        {
+          "author": "AI",
+          "text": "Please check your spam folder. If it is not there, I will pass the request to a member of staff.",
+          "minutesAgo": 94
+        },
+        {
+          "author": "CONTACT",
+          "text": "There is nothing there",
+          "minutesAgo": 82
+        },
+        {
+          "author": "SYSTEM",
+          "text": "Anna Kim took the dialog",
+          "minutesAgo": 79
+        },
+        {
+          "author": "OPERATOR",
+          "text": "I will check with my colleagues which address is on the account.",
+          "minutesAgo": 77,
+          "authorUser": "anna"
+        }
+      ]
+    },
+    {
+      "key": "olga_return",
+      "agent": "consultant",
+      "connection": "tg",
+      "contact": "olga",
+      "identity": "olga_tg",
+      "externalChatId": "482913004",
+      "lifecycle": "OPEN",
+      "controlMode": "HUMAN",
+      "expectedResponder": "CUSTOMER",
+      "assignedOperator": "elena",
+      "group": "operators",
+      "priority": "NONE",
+      "labels": [
+        "return"
+      ],
+      "note": "",
+      "createdMinutesAgo": 122,
+      "lastActivityMinutesAgo": 105,
+      "readBy": [
+        "elena"
+      ],
+      "messages": [
+        {
+          "author": "CONTACT",
+          "text": "Hello! I have received the curtains, but the width is not what I ordered.",
+          "minutesAgo": 122
+        },
+        {
+          "author": "AI",
+          "text": "Hello, Olga. I am sorry about that. Exchanges and returns are possible within 14 days — I am passing the question to a member of staff.",
+          "minutesAgo": 122
+        },
+        {
+          "author": "CONTACT",
+          "kind": "voice",
+          "voice": {
+            "file": "olga-eighty-cm.ogg",
+            "contentType": "audio/ogg",
+            "durationSeconds": 3,
+            "transcriptStatus": "READY",
+            "transcript": "Can you see? Exactly eighty centimetres!"
+          },
+          "minutesAgo": 114
+        },
+        {
+          "author": "SYSTEM",
+          "text": "Elena Kuznetsova took the dialog",
+          "minutesAgo": 110
+        },
+        {
+          "author": "OPERATOR",
+          "kind": "voice",
+          "voice": {
+            "file": "elena-start-with-numbers.ogg",
+            "contentType": "audio/ogg",
+            "durationSeconds": 7,
+            "transcriptStatus": "NONE"
+          },
+          "minutesAgo": 108,
+          "authorUser": "elena"
+        },
+        {
+          "author": "CONTACT",
+          "kind": "voice",
+          "voice": {
+            "file": "olga-saturday-post.ogg",
+            "contentType": "audio/ogg",
+            "durationSeconds": 3,
+            "transcriptStatus": "READY",
+            "transcript": "Does the post office deliver parcels on Saturdays?"
+          },
+          "minutesAgo": 105
+        }
+      ]
+    },
+    {
+      "key": "sergey_address",
+      "agent": "consultant",
+      "connection": "tg",
+      "contact": "sergey",
+      "identity": "sergey_tg",
+      "externalChatId": "482913007",
+      "lifecycle": "CLOSED",
+      "controlMode": "HUMAN",
+      "expectedResponder": "NOBODY",
+      "assignedOperator": "elena",
+      "group": "operators",
+      "priority": "NONE",
+      "labels": [
+        "address"
+      ],
+      "note": "",
+      "createdHoursAgo": 30,
+      "createdMinutesAgo": 9,
+      "lastActivityHoursAgo": 30,
+      "lastActivityMinutesAgo": 2,
+      "readBy": [
+        "elena"
+      ],
+      "messages": [
+        {
+          "author": "CONTACT",
+          "text": "Hello, I would like to change the delivery address on order 4402",
+          "hoursAgo": 30,
+          "minutesAgo": 9
+        },
+        {
+          "author": "SYSTEM",
+          "text": "Elena Kuznetsova took the dialog",
+          "hoursAgo": 30,
+          "minutesAgo": 8
+        },
+        {
+          "author": "OPERATOR",
+          "authorUser": "elena",
+          "text": "Hello, Sergey. Send me the new address and I will change it.",
+          "hoursAgo": 30,
+          "minutesAgo": 7
+        },
+        {
+          "author": "CONTACT",
+          "text": "12 Deansgate, Flat 40, Manchester",
+          "hoursAgo": 30,
+          "minutesAgo": 5
+        },
+        {
+          "author": "OPERATOR",
+          "authorUser": "elena",
+          "text": "Done, the address is updated. Have a good day!",
+          "hoursAgo": 30,
+          "minutesAgo": 3
+        },
+        {
+          "author": "SYSTEM",
+          "text": "Dialog closed",
+          "hoursAgo": 30,
+          "minutesAgo": 2
+        }
+      ]
+    },
+    {
+      "key": "maria_measure",
+      "agent": "consultant",
+      "connection": "tg",
+      "contact": "maria",
+      "identity": "maria_tg",
+      "externalChatId": "482913001",
+      "lifecycle": "CLOSED",
+      "controlMode": "HUMAN",
+      "expectedResponder": "NOBODY",
+      "assignedOperator": "anna",
+      "group": "operators",
+      "priority": "NONE",
+      "labels": [],
+      "note": "",
+      "archivedDaysAgo": 20,
+      "createdDaysAgo": 24,
+      "lastActivityDaysAgo": 24,
+      "readBy": [
+        "anna"
+      ],
+      "previousConversation": "maria_first",
+      "messages": [
+        {
+          "author": "CONTACT",
+          "text": "Hello! Three windows, 2.4 by 2.7 each. How much would a set of curtains with voile cost?",
+          "daysAgo": 24,
+          "hoursAgo": 3
+        },
+        {
+          "author": "SYSTEM",
+          "text": "Anna Kim took the dialog",
+          "daysAgo": 24,
+          "hoursAgo": 3
+        },
+        {
+          "author": "OPERATOR",
+          "authorUser": "anna",
+          "text": "Hello, Maria! Anna Kim here. For three windows at 2.4 × 2.7: Nord blackout curtains and sheer voile — £1,940 including the making. I am sending the quote as a file.",
+          "daysAgo": 24,
+          "hoursAgo": 2
+        },
+        {
+          "author": "CONTACT",
+          "text": "That works! Go ahead, I will pay today.",
+          "daysAgo": 24,
+          "hoursAgo": 1
+        },
+        {
+          "author": "OPERATOR",
+          "authorUser": "anna",
+          "text": "I have placed order 4471. The payment link will come to this chat. Thank you!",
+          "daysAgo": 24,
+          "hoursAgo": 1
+        },
+        {
+          "author": "SYSTEM",
+          "text": "Dialog closed · handled by Anna Kim",
+          "daysAgo": 24
+        }
+      ]
+    },
+    {
+      "key": "maria_first",
+      "agent": "consultant",
+      "connection": "tg",
+      "contact": "maria",
+      "identity": "maria_tg",
+      "externalChatId": "482913001",
+      "lifecycle": "CLOSED",
+      "controlMode": "AI",
+      "expectedResponder": "NOBODY",
+      "group": "operators",
+      "priority": "NONE",
+      "labels": [],
+      "note": "",
+      "archivedDaysAgo": 30,
+      "createdDaysAgo": 33,
+      "lastActivityDaysAgo": 33,
+      "readBy": [
+        "anna"
+      ],
+      "messages": [
+        {
+          "author": "CONTACT",
+          "text": "Hello, which fabrics do you have for a living room and how long does the making take?",
+          "daysAgo": 33,
+          "hoursAgo": 5
+        },
+        {
+          "author": "AI",
+          "text": "Hello, Maria! For a living room people usually take Nord blackout (14 colours) and Scandia linen. Making takes 5–7 working days after payment. I am sending the fabric catalogue.",
+          "daysAgo": 33,
+          "hoursAgo": 5
+        },
+        {
+          "author": "CONTACT",
+          "text": "Thank you, I will have a look!",
+          "daysAgo": 33,
+          "hoursAgo": 4
+        },
+        {
+          "author": "SYSTEM",
+          "text": "Dialog closed · AI",
+          "daysAgo": 33
+        }
+      ]
+    },
+    {
+      "key": "viktor_wholesale",
+      "agent": "consultant",
+      "connection": "tg",
+      "contact": "viktor",
+      "identity": "viktor_tg",
+      "externalChatId": "482913006",
+      "lifecycle": "OPEN",
+      "controlMode": "HUMAN",
+      "expectedResponder": "CUSTOMER",
+      "assignedOperator": "kirill",
+      "group": "vip",
+      "priority": "LOW",
+      "labels": [
+        "vip",
+        "wholesale"
+      ],
+      "note": "Textile buyer for a hotel. Asked us to write by e-mail rather than call.",
+      "createdMinutesAgo": 4300,
+      "lastActivityMinutesAgo": 2900,
+      "readBy": [
+        "kirill",
+        "elena"
+      ],
+      "messages": [
+        {
+          "author": "CONTACT",
+          "text": "Good afternoon. House of Textiles, a 46-room hotel. We need blackout and voile for every window, all one size, 1.8 × 2.5. Do you have wholesale terms?",
+          "daysAgo": 3
+        },
+        {
+          "author": "AI",
+          "text": "Good afternoon, Viktor! Wholesale terms are handled by our VIP client manager — I am passing the dialog on.",
+          "daysAgo": 3
+        },
+        {
+          "author": "SYSTEM",
+          "text": "Kirill Volkov took the dialog",
+          "daysAgo": 3
+        },
+        {
+          "author": "OPERATOR",
+          "authorUser": "kirill",
+          "text": "Hello, Viktor! Kirill Volkov here. On 46 sets we give 12% off the fabric and the making, with a three-week lead time. I will send the quotation by e-mail today.",
+          "daysAgo": 3
+        },
+        {
+          "author": "CONTACT",
+          "text": "Excellent, I will wait for the quotation. My e-mail is on the card.",
+          "daysAgo": 2
+        },
+        {
+          "author": "CONTACT",
+          "kind": "contact",
+          "text": "+44 20 7946 0210",
+          "daysAgo": 2
+        }
+      ],
+      "archivedDaysAgo": 1,
+      "createdDaysAgo": 3,
+      "lastActivityDaysAgo": 2
+    },
+    {
+      "key": "polina_password",
+      "agent": "support",
+      "connection": "email",
+      "contact": "polina",
+      "identity": "polina_email",
+      "externalChatId": "polina.rakitina@example.com",
+      "lifecycle": "CLOSED",
+      "controlMode": "HUMAN",
+      "expectedResponder": "NOBODY",
+      "group": "support",
+      "priority": "MEDIUM",
+      "labels": [],
+      "note": "",
+      "createdMinutesAgo": 240,
+      "lastActivityMinutesAgo": 200,
+      "readBy": [
+        "igor"
+      ],
+      "transportMeta": {
+        "subject": "The password reset e-mail never arrives"
+      },
+      "messages": [
+        {
+          "author": "CONTACT",
+          "text": "The password reset e-mail for my account never arrives",
+          "contentHtml": "<p>Hello!</p><p>I am trying to reset the password for my account on <b>nord-atelier.com</b> — the e-mail has not arrived for an hour. The address is right, I have checked.</p><p>Kind regards,<br>Polina Rakitina</p>",
+          "minutesAgo": 240,
+          "daysAgo": 2
+        },
+        {
+          "author": "AI",
+          "text": "Please check your spam folder. If it is not there, I will pass the request to a member of staff.",
+          "contentHtml": "<p>Hello, Polina!</p><p>The message comes from <b>no-reply@nord-atelier.com</b> within 5 minutes. Please check your spam folder. If it is not there, I will pass the request to a member of staff.</p>",
+          "minutesAgo": 238,
+          "daysAgo": 2
+        },
+        {
+          "author": "CONTACT",
+          "text": "It is not in spam either. Please help.",
+          "contentHtml": "<p>It is not in spam either. Please help.</p>",
+          "minutesAgo": 200,
+          "daysAgo": 2
+        },
+        {
+          "author": "SYSTEM",
+          "text": "The AI handed the dialog over: the client is asking for a member of staff",
+          "minutesAgo": 200,
+          "daysAgo": 2
+        },
+        {
+          "author": "OPERATOR",
+          "authorUser": "igor",
+          "text": "Hello, Polina! Igor Saveliev here. The messages were going to an address with a typo — I have fixed it and sent the reset link again.",
+          "daysAgo": 2,
+          "contentHtml": "<p>Hello, Polina!</p><p>The messages were going to an address with a typo — I have fixed it and sent the reset link again.</p><p>Igor Saveliev, support</p>"
+        },
+        {
+          "author": "SYSTEM",
+          "text": "Dialog closed · handled by Igor Saveliev",
+          "daysAgo": 2
+        },
+        {
+          "author": "OPERATOR",
+          "authorUser": "igor",
+          "text": "Hello, Polina! Igor Saveliev here. The messages were going to an address with a typo — I have fixed it and sent the reset link again.",
+          "daysAgo": 2,
+          "contentHtml": "<p>Hello, Polina!</p><p>The messages were going to an address with a typo — I have fixed it and sent the reset link again.</p><p>Igor Saveliev, support</p>"
+        },
+        {
+          "author": "SYSTEM",
+          "text": "Dialog closed · handled by Igor Saveliev",
+          "daysAgo": 2
+        },
+        {
+          "author": "OPERATOR",
+          "authorUser": "igor",
+          "text": "Hello, Polina! Igor Saveliev here. The messages were going to an address with a typo — I have fixed it and sent the reset link again.",
+          "daysAgo": 2,
+          "contentHtml": "<p>Hello, Polina!</p><p>The messages were going to an address with a typo — I have fixed it and sent the reset link again.</p><p>Igor Saveliev, support</p>"
+        },
+        {
+          "author": "SYSTEM",
+          "text": "Dialog closed · handled by Igor Saveliev",
+          "daysAgo": 2
+        }
+      ],
+      "archivedDaysAgo": 1,
+      "createdDaysAgo": 2,
+      "lastActivityDaysAgo": 2,
+      "assignedOperator": "igor"
+    },
+    {
+      "key": "portal_sergey",
+      "agent": "portal",
+      "connection": "web_account",
+      "contact": "sergey",
+      "identity": "sergey_web",
+      "externalChatId": "portal-sergey-1",
+      "lifecycle": "CLOSED",
+      "controlMode": "HUMAN",
+      "expectedResponder": "NOBODY",
+      "assignedOperator": "igor",
+      "group": "support",
+      "priority": "NONE",
+      "labels": [],
+      "note": "An authenticated request from the customer account (support portal).",
+      "createdDaysAgo": 6,
+      "lastActivityDaysAgo": 6,
+      "readBy": [
+        "artem"
+      ],
+      "messages": [
+        {
+          "author": "CONTACT",
+          "text": "I paid for order 4402 by bank transfer, but the status still says “Awaiting payment”. I am attaching the receipt.",
+          "daysAgo": 6
+        },
+        {
+          "author": "AI",
+          "text": "Hello, Sergey. A bank transfer can take up to 30 minutes to show. If the status does not change, I will pass this to a member of staff.",
+          "daysAgo": 6
+        },
+        {
+          "author": "SYSTEM",
+          "text": "Igor Saveliev took the dialog",
+          "daysAgo": 6
+        },
+        {
+          "author": "OPERATOR",
+          "authorUser": "igor",
+          "text": "Sergey, I found the payment and applied it by hand — order 4402 is now “In production”. Thank you for your patience!",
+          "daysAgo": 6
+        },
+        {
+          "author": "SYSTEM",
+          "text": "Dialog closed · handled by Igor Saveliev",
+          "daysAgo": 6
+        }
+      ],
+      "archivedDaysAgo": 4
+    },
+    {
+      "key": "spam_credit",
+      "agent": "consultant",
+      "connection": "tg",
+      "contact": "spammer",
+      "identity": "spam_tg",
+      "externalChatId": "900000001",
+      "lifecycle": "SPAM",
+      "controlMode": "PAUSED",
+      "expectedResponder": "NOBODY",
+      "group": "operators",
+      "priority": "NONE",
+      "labels": [],
+      "note": "",
+      "createdMinutesAgo": 600,
+      "lastActivityMinutesAgo": 600,
+      "readBy": [
+        "elena"
+      ],
+      "messages": [
+        {
+          "author": "CONTACT",
+          "text": "GREAT BUSINESS LOANS up to £200,000 with no paperwork! Click: credit-fast24.example",
+          "minutesAgo": 600
+        },
+        {
+          "author": "SYSTEM",
+          "text": "Elena Kuznetsova marked the dialog as spam",
+          "minutesAgo": 590
+        }
+      ]
+    }
+  ],
+  "contactMerges": [
+    {
+      "target": "maria",
+      "source": "maria-duplicate",
+      "reason": "The same person: the phone number matched and it was confirmed in the dialog",
+      "actor": "elena"
+    }
+  ]
+}

apps/backend/chatballs/identity/demo_seed/data/en/operations.json

@@ -0,0 +1,161 @@
+{
+  "schemaVersion": 1,
+  "calls": [
+    {
+      "key": "call_maria",
+      "conversation": "maria_measure",
+      "initiatedBy": "anna",
+      "contactIdentity": "maria_tg",
+      "deliveryConnection": "tg",
+      "kind": "AUDIO",
+      "status": "ENDED",
+      "endedBy": "STAFF",
+      "daysAgo": 24,
+      "durationSeconds": 262,
+      "metrics": {
+        "connectionType": "RELAY",
+        "localCandidateType": "relay",
+        "remoteCandidateType": "relay",
+        "roundTripMs": 64
+      }
+    },
+    {
+      "key": "call_olga_video",
+      "conversation": "olga_return",
+      "initiatedBy": "elena",
+      "contactIdentity": "olga_tg",
+      "deliveryConnection": "tg",
+      "kind": "VIDEO",
+      "status": "ENDED",
+      "endedBy": "CUSTOMER",
+      "minutesAgo": 107,
+      "durationSeconds": 95,
+      "metrics": {
+        "connectionType": "DIRECT",
+        "localCandidateType": "srflx",
+        "remoteCandidateType": "srflx",
+        "roundTripMs": 31
+      }
+    },
+    {
+      "key": "call_sergey_missed",
+      "conversation": "sergey_address",
+      "initiatedBy": "elena",
+      "contactIdentity": "sergey_tg",
+      "deliveryConnection": "tg",
+      "kind": "AUDIO",
+      "status": "MISSED",
+      "hoursAgo": 30,
+      "minutesAgo": 6
+    },
+    {
+      "key": "call_viktor_declined",
+      "conversation": "viktor_wholesale",
+      "initiatedBy": "kirill",
+      "contactIdentity": "viktor_tg",
+      "deliveryConnection": "tg",
+      "kind": "AUDIO",
+      "status": "DECLINED",
+      "endedBy": "CUSTOMER",
+      "daysAgo": 3
+    },
+    {
+      "key": "call_sergey_expired",
+      "conversation": "portal_sergey",
+      "initiatedBy": "igor",
+      "contactIdentity": "sergey_web",
+      "deliveryConnection": "web_account",
+      "kind": "AUDIO",
+      "status": "EXPIRED",
+      "daysAgo": 6,
+      "invite": {
+        "deliveryStatus": "DELIVERED",
+        "expiredMinutesAfter": 2
+      }
+    }
+  ],
+  "notifications": [
+    {
+      "type": "DIALOG_WAITING",
+      "level": "WARNING",
+      "title": "Dmitry Orlov is waiting for an operator",
+      "body": "Web Chat: the client asked for a member of staff. Waiting 6 min.",
+      "targetRoute": "chat",
+      "targetConversation": "dmitry_custom",
+      "audience": "ALL",
+      "minutesAgo": 10
+    },
+    {
+      "type": "DIALOG_NEW_MESSAGE",
+      "level": "INFO",
+      "title": "New voice message from Olga Melnik",
+      "body": "“Does the post office deliver parcels on Saturdays?”",
+      "targetRoute": "chat",
+      "targetConversation": "olga_return",
+      "audience": "USER",
+      "recipientUser": "elena",
+      "minutesAgo": 105
+    },
+    {
+      "type": "DIALOG_NEW_MESSAGE",
+      "level": "INFO",
+      "title": "New message from Maria Sokolova",
+      "body": "“All right, I'll wait”",
+      "targetRoute": "chat",
+      "targetConversation": "maria_delivery",
+      "audience": "ALL",
+      "minutesAgo": 4
+    },
+    {
+      "type": "INTEGRATION_ERROR",
+      "level": "CRITICAL",
+      "title": "Telegram · delivery bot: connection error",
+      "body": "401 Unauthorized: bot token was revoked in @BotFather. Check the token in the connection settings.",
+      "targetRoute": "settings",
+      "audience": "OWNER",
+      "minutesAgo": 4200
+    },
+    {
+      "type": "RELEASE_PUBLISHED",
+      "level": "SUCCESS",
+      "title": "Chatballs update: voice messages",
+      "body": "Operators can send voice messages to Telegram and MAX, and incoming ones are transcribed with a single button.",
+      "targetRoute": "chat",
+      "audience": "ALL",
+      "daysAgo": 2,
+      "readBy": [
+        "elena",
+        "anna",
+        "svetlana"
+      ]
+    }
+  ],
+  "messengerBindings": [
+    {
+      "user": "elena",
+      "connection": "tg",
+      "externalChatId": "482900010",
+      "pushTypes": [
+        "DIALOG_WAITING",
+        "DIALOG_NEW_MESSAGE",
+        "INTEGRATION_ERROR"
+      ]
+    },
+    {
+      "user": "svetlana",
+      "connection": "tg",
+      "externalChatId": "482900011",
+      "pushTypes": [
+        "DIALOG_WAITING"
+      ]
+    }
+  ],
+  "messengerBindingCodes": [
+    {
+      "user": "igor",
+      "connection": "tg",
+      "code": "DEMO-7K2P",
+      "expiresInMinutes": 25
+    }
+  ]
+}

apps/backend/chatballs/identity/demo_seed/data/en/organization.json

@@ -0,0 +1,134 @@
+{
+  "schemaVersion": 1,
+  "_comment": "English demo set for «Nord Atelier». Same cast and keys as data/ru: avatars, voice recordings and cross-file references are shared, only the prose differs. Installed into the installer's own organization — neither the organization nor its owner is created here. All demo employees share one password, see demoPassword.",
+  "demoPassword": "Chatballs-Demo-2026",
+  "showcaseAccounts": [
+    "elena",
+    "svetlana",
+    "igor"
+  ],
+  "groups": [
+    {
+      "key": "operators",
+      "name": "Operators",
+      "color": "#1677ff"
+    },
+    {
+      "key": "support",
+      "name": "Support",
+      "color": "#2aa876"
+    },
+    {
+      "key": "vip",
+      "name": "VIP clients",
+      "color": "#eb2f96"
+    }
+  ],
+  "accounts": [
+    {
+      "key": "elena",
+      "email": "e.kuznetsova@nord-atelier.com",
+      "fullName": "Elena Kuznetsova",
+      "role": "ADMIN",
+      "positionTitle": "Administrator",
+      "phone": "+44 20 7946 0116",
+      "groups": [
+        "operators",
+        "support"
+      ],
+      "avatar": "elena-kuznetsova.png",
+      "uiTheme": "LIGHT",
+      "uiAccent": "#1677ff",
+      "createdDaysAgo": 120
+    },
+    {
+      "key": "anna",
+      "email": "a.kim@nord-atelier.com",
+      "fullName": "Anna Kim",
+      "role": "ADMIN",
+      "positionTitle": "Administrator",
+      "phone": "+44 20 7946 0117",
+      "groups": [
+        "operators",
+        "support"
+      ],
+      "avatar": "anna-kim.png",
+      "uiTheme": "LIGHT",
+      "uiAccent": "#1677ff",
+      "createdDaysAgo": 110
+    },
+    {
+      "key": "svetlana",
+      "email": "s.petrova@nord-atelier.com",
+      "fullName": "Svetlana Petrova",
+      "role": "EMPLOYEE",
+      "positionTitle": "Operator",
+      "phone": "+44 20 7946 0120",
+      "groups": [
+        "operators"
+      ],
+      "avatar": "svetlana-petrova.jpg",
+      "uiTheme": "DARK",
+      "uiAccent": "#7c3aed",
+      "createdDaysAgo": 80
+    },
+    {
+      "key": "igor",
+      "email": "i.saveliev@nord-atelier.com",
+      "fullName": "Igor Saveliev",
+      "role": "EMPLOYEE",
+      "positionTitle": "Support specialist",
+      "phone": "+44 20 7946 0119",
+      "groups": [
+        "support"
+      ],
+      "uiTheme": "SYSTEM",
+      "uiAccent": "#0f9d58",
+      "createdDaysAgo": 60
+    },
+    {
+      "key": "kirill",
+      "email": "k.volkov@nord-atelier.com",
+      "fullName": "Kirill Volkov",
+      "role": "EMPLOYEE",
+      "positionTitle": "VIP client manager",
+      "phone": "",
+      "groups": [
+        "vip"
+      ],
+      "totpEnabled": true,
+      "uiTheme": "LIGHT",
+      "uiAccent": "#d6336c",
+      "createdDaysAgo": 40
+    },
+    {
+      "key": "natalia",
+      "email": "n.frolova@nord-atelier.com",
+      "fullName": "Natalia Frolova",
+      "role": "EMPLOYEE",
+      "positionTitle": "Operator (left the company)",
+      "phone": "",
+      "groups": [
+        "operators"
+      ],
+      "blocked": true,
+      "uiTheme": "SYSTEM",
+      "uiAccent": "#1677ff",
+      "createdDaysAgo": 200
+    }
+  ],
+  "invitations": [
+    {
+      "email": "v.kotova@nord-atelier.com",
+      "role": "EMPLOYEE",
+      "createdBy": "elena",
+      "expiresInDays": 6
+    },
+    {
+      "email": "old.invite@nord-atelier.com",
+      "role": "EMPLOYEE",
+      "createdBy": "elena",
+      "expiresInDays": -2
+    }
+  ]
+}

apps/backend/chatballs/identity/demo_seed/data/en/support.json

@@ -0,0 +1,122 @@
+{
+  "schemaVersion": 1,
+  "portal": {
+    "slug": "nord-atelier",
+    "name": "Help · Nord Atelier",
+    "locale": "en",
+    "status": "PUBLISHED",
+    "widgetConnection": "web_help",
+    "categories": [
+      {
+        "slug": "orders",
+        "name": "Orders and payment",
+        "description": "Placing an order, payment, statuses",
+        "sortOrder": 1
+      },
+      {
+        "slug": "delivery",
+        "name": "Delivery",
+        "description": "Lead times, courier, nationwide shipping",
+        "sortOrder": 2
+      },
+      {
+        "slug": "returns",
+        "name": "Returns and exchanges",
+        "description": "Return conditions for our products",
+        "sortOrder": 3
+      },
+      {
+        "slug": "care",
+        "name": "Caring for your curtains",
+        "description": "Washing and ironing by fabric type",
+        "sortOrder": 4
+      }
+    ],
+    "articles": [
+      {
+        "slug": "how-to-measure",
+        "category": "orders",
+        "title": "How to measure for curtains",
+        "summary": "Track, drop, allowances — in five minutes",
+        "content": "## Track length\n\nMeasure the track from end to end — not the window. Curtains should cover the window with 15–20 cm to spare on each side.\n\n## Drop\n\nFrom the track hook (or the top of the pole) to the length you want: to the sill minus 1 cm, to the floor minus 1–2 cm, puddled on the floor plus 3–5 cm.\n\n## Eyelets\n\nFor eyelet curtains add 3 cm at the top.\n\nPhotograph the whole window and send it to a consultant — we will check your figures free of charge.",
+        "status": "PUBLISHED",
+        "helpfulVotes": 14,
+        "unhelpfulVotes": 1,
+        "publishedDaysAgo": 27,
+        "files": [
+          "katalog-tkanej-2026.pdf"
+        ]
+      },
+      {
+        "slug": "lead-times",
+        "category": "delivery",
+        "title": "Making and delivery times",
+        "summary": "5–7 working days to make, 3–5 to deliver nationwide",
+        "content": "Making takes **5–7 working days** once the quote is agreed and paid.\n\n### Within London\n\nCourier — £15, free on orders over £400. Slots 10:00–13:00, 13:00–17:00, 17:00–20:00. The courier calls an hour ahead.\n\n### Across the country\n\nDPD to a pickup point or to your door, 3–5 working days. The tracking number arrives by e-mail on the day of dispatch.",
+        "status": "PUBLISHED",
+        "helpfulVotes": 22,
+        "unhelpfulVotes": 3,
+        "publishedDaysAgo": 26,
+        "secondRevision": {
+          "summary": "5–7 working days to make, 3–5 to deliver nationwide. Moving your slot is free",
+          "contentAppend": "\n\n### Moving your delivery\n\nYou can move the slot free of charge until 18:00 the day before — write to us in the chat or at info@nord-atelier.com.",
+          "daysAgo": 9
+        }
+      },
+      {
+        "slug": "returns-and-exchanges",
+        "category": "returns",
+        "title": "Returns and exchanges",
+        "summary": "Ready-made items — 14 days; made to measure — remade if faulty",
+        "content": "Ready-made items from the catalogue can be returned within **14 days** if they have not been used.\n\nItems made to your own measurements cannot be returned (bespoke goods are exempt from the cancellation right under the Consumer Contracts Regulations), except where they are faulty or do not match the order: wrong colour or size, defects in the making. In that case we remake or exchange them free of charge, in 5–7 working days.\n\nTo make a claim, send us your order number and photographs of the item in the chat.",
+        "status": "PUBLISHED",
+        "helpfulVotes": 9,
+        "unhelpfulVotes": 4,
+        "publishedDaysAgo": 25
+      },
+      {
+        "slug": "your-account",
+        "category": "orders",
+        "title": "Your account: signing in and resetting a password",
+        "summary": "The reset e-mail arrives within 5 minutes",
+        "content": "You sign in with your e-mail. The password reset message comes from no-reply@nord-atelier.com within 5 minutes. If it has not arrived, check your spam folder. You can ask for another one after 10 minutes.\n\nOrder statuses: “Awaiting payment” → “In production” → “Ready” → “Handed to the courier” → “Delivered”.",
+        "status": "PUBLISHED",
+        "helpfulVotes": 6,
+        "unhelpfulVotes": 0,
+        "publishedDaysAgo": 20
+      },
+      {
+        "slug": "curtain-care",
+        "category": "care",
+        "title": "How to care for your curtains",
+        "summary": "Washing and ironing by fabric type",
+        "content": "**Blackout** — delicate wash at 30°, no spin, iron on the reverse at the lowest setting.\n\n**Linen** — wash at 40°; shrinkage of up to 3% is already allowed for in the measurements.\n\n**Velvet** — dry clean only.\n\n**Voile** — wash at 30° in a mesh bag, dry it hanging on the track.",
+        "status": "PUBLISHED",
+        "helpfulVotes": 11,
+        "unhelpfulVotes": 0,
+        "publishedDaysAgo": 15
+      },
+      {
+        "slug": "paying-in-instalments",
+        "category": "orders",
+        "title": "Paying in instalments",
+        "summary": "Draft: 50/50 terms for orders over £1,200",
+        "content": "For orders over £1,200 you can pay 50% when you order and 50% before dispatch. Draft — to be agreed with the finance team.",
+        "status": "DRAFT",
+        "helpfulVotes": 0,
+        "unhelpfulVotes": 0
+      },
+      {
+        "slug": "summer-sale-2026",
+        "category": "orders",
+        "title": "Summer sale 2026",
+        "summary": "10% off voile until 31 August",
+        "content": "This offer has ended.",
+        "status": "ARCHIVED",
+        "helpfulVotes": 3,
+        "unhelpfulVotes": 0,
+        "publishedDaysAgo": 70
+      }
+    ]
+  }
+}

apps/backend/chatballs/identity/demo_seed/data/media/delivery-and-payment.txt

@@ -0,0 +1,13 @@
+DELIVERY AND PAYMENT — consultant's crib sheet
+
+Making: 5–7 working days after payment. Express (3 days): +30% on the making, fabric in stock only.
+
+London, courier: £15, free over £400.
+Slots: 10:00–13:00, 13:00–17:00, 17:00–20:00. The courier calls an hour ahead.
+Moving a slot is free until 18:00 the day before.
+
+Nationwide, DPD: to a pickup point or to your door, 3–5 working days from dispatch.
+The tracking number goes to the client's e-mail on the day of dispatch, by 19:00.
+Manchester, Birmingham, Leeds — usually 3 days.
+
+Payment: 100% on ordering (card, bank transfer) or 50/50 for orders over £1,200.

apps/backend/chatballs/identity/demo_seed/data/media/fabric-catalogue-2026.pdf

@@ -0,0 +1,32 @@
+%PDF-1.4
+1 0 obj
+<< /Type /Catalog /Pages 2 0 R >>
+endobj
+2 0 obj
+<< /Type /Pages /Kids [3 0 R] /Count 1 >>
+endobj
+3 0 obj
+<< /Type /Page /Parent 2 0 R /MediaBox [0 0 595 842] /Contents 4 0 R /Resources << /Font << /F1 5 0 R >> >> >>
+endobj
+4 0 obj
+<< /Length 496 >>
+stream
+BT /F1 12 Tf 50 780 Td 16 TL (Nord Atelier - Fabric catalogue 2026) Tj T* () Tj T* (Curtain fabrics, width 280-300 cm) Tj T* (Nord blackout - 100% blackout - GBP 59/m - 14 colours) Tj T* (Linen blend - GBP 35/m - 9 colours) Tj T* (Verona velvet - GBP 87/m - 6 colours) Tj T* (Canvas - GBP 27/m - 12 colours) Tj T* () Tj T* (Voile) Tj T* (Sheer voile - GBP 15/m) Tj T* (Greek net - GBP 20/m) Tj T* (Linen voile - GBP 29/m) Tj T* () Tj T* (Samples: up to 5 of them, posted free of charge.) Tj T* ET
+endstream
+endobj
+5 0 obj
+<< /Type /Font /Subtype /Type1 /BaseFont /Helvetica >>
+endobj
+xref
+0 6
+0000000000 65535 f 
+0000000009 00000 n 
+0000000058 00000 n 
+0000000115 00000 n 
+0000000241 00000 n 
+0000000788 00000 n 
+trailer
+<< /Size 6 /Root 1 0 R >>
+startxref
+858
+%%EOF

apps/backend/chatballs/identity/demo_seed/data/media/fabric-catalogue-2026.txt

@@ -0,0 +1,14 @@
+Fabric catalogue 2026 — Nord Atelier
+
+Curtain fabrics (280–300 cm wide)
+Nord blackout — 100% blackout — £59/m — 14 colours
+Linen blend — £35/m — 9 colours
+Verona velvet — £87/m — 6 colours
+Canvas — £27/m — 12 colours
+
+Voile
+Sheer voile — £15/m
+Greek net — £20/m
+Linen voile — £29/m
+
+Samples: up to 5 of them, posted free of charge.

apps/backend/chatballs/identity/demo_seed/data/media/price-estimate.md

@@ -0,0 +1,32 @@
+# Quoting for made-to-measure curtains
+
+## The formula
+
+**Price = fabric + making + hardware**
+
+| Component | How we count it |
+| --- | --- |
+| Fabric | metres × price per metre (see the fabric catalogue) |
+| Making, curtains | £18 per linear metre of finished width |
+| Making, voile | £14 per linear metre of finished width |
+| Eyelets | £3.50 each (18 cm apart) |
+| Heading tape | £4.80 per metre |
+
+## Fullness ratio
+
+- Heavy curtains — 1.5
+- Linen, canvas — 1.8
+- Voile, sheers — 2.0–2.5
+
+Fabric width = track width × ratio. Fabric drop = finished drop + 15 cm for the hem.
+
+## Worked example
+
+A 3 m track, 2.6 m drop, Nord blackout at £59/m, two curtains.
+
+- Fabric: 3 × 1.5 = 4.5 m × £59 = £265.50
+- Making: 4.5 × £18 = £81
+- Tape: 4.5 × £4.80 = £21.60
+- **Total: £368.10**
+
+Minimum order — £120. Measuring within London is free on orders over £600.

apps/backend/chatballs/identity/demo_seed/loaders/channels_ai.py

@@ -28,7 +28,7 @@ from chatballs.webchat.widgets import ensure_widget
 
 
 def load(context: TenantContext, refs: DemoRefs) -> None:
-    data = manifest.load("channels_ai")
+    data = manifest.load("channels_ai", refs.language)
     current = now()
 
     llm = _ensure_llm_provider(context, refs, data["llmProvider"], current)

apps/backend/chatballs/identity/demo_seed/loaders/conversations.py

@@ -32,7 +32,7 @@ AVATAR_URL = "/api/v1/demo-media/avatars/{name}"
 
 
 def load(context: TenantContext, refs: DemoRefs) -> None:
-    data = manifest.load("conversations")
+    data = manifest.load("conversations", refs.language)
     organization = refs.organization
     current = now()
 

apps/backend/chatballs/identity/demo_seed/loaders/foundation.py

@@ -22,7 +22,7 @@ from chatballs.tenancy.context import TenantContext
 
 
 def load(context: TenantContext, refs: DemoRefs) -> None:
-    data = manifest.load("organization")
+    data = manifest.load("organization", refs.language)
     organization = refs.organization
     current = now()
 

apps/backend/chatballs/identity/demo_seed/loaders/operations.py

@@ -42,7 +42,7 @@ FINISHED = {
 
 
 def load(context: TenantContext, refs: DemoRefs) -> None:
-    data = manifest.load("operations")
+    data = manifest.load("operations", refs.language)
     current = now()
     for item in data.get("calls", []):
         _ensure_call(refs, item, current)

apps/backend/chatballs/identity/demo_seed/loaders/support.py

@@ -34,7 +34,7 @@ from chatballs.tenancy.storage import adjust_storage_usage
 
 
 def load(context: TenantContext, refs: DemoRefs) -> None:
-    data = manifest.load("support")
+    data = manifest.load("support", refs.language)
     current = now()
     _ensure_portal(context, refs, data.get("portal"), current)
     _link_agent_articles(refs)

apps/backend/chatballs/identity/demo_seed/manifest.py

@@ -16,6 +16,12 @@ from django.core.exceptions import ImproperlyConfigured
 DATA_DIR = Path(__file__).resolve().parent / "data"
 MEDIA_DIR = DATA_DIR / "media"
 
+# Язык демо-данных: у каждого свой каталог манифестов. Демо — это витрина, и
+# на английской установке она обязана быть английской целиком: имена, переписка,
+# знания. Общими остаются только бинарные вложения в ``media`` (аватары,
+# голосовые): их из текста не сделать.
+DEFAULT_DATA_LANGUAGE = "ru"
+
 SCHEMA_VERSION = 1
 
 #: Файлы манифестов по доменам (имя файла без расширения).
@@ -33,13 +39,16 @@ class ManifestError(ImproperlyConfigured):
 
 
 @cache
-def load(name: str) -> dict | list:
+def load(name: str, language: str = DEFAULT_DATA_LANGUAGE) -> dict | list:
     """Возвращает разобранный JSON-манифест ``name`` с проверкой схемы.
 
-    Кэшируется на процесс: повторные вызовы во время одного прогона сида
-    не перечитывают файл.
+    Кэшируется на процесс и на язык: повторные вызовы во время одного прогона
+    сида не перечитывают файл. Язык, для которого набора нет, откатывается к
+    языку по умолчанию — демо лучше показать на другом языке, чем не показать.
     """
-    path = DATA_DIR / f"{name}.json"
+    path = DATA_DIR / language / f"{name}.json"
+    if not path.is_file():
+        path = DATA_DIR / DEFAULT_DATA_LANGUAGE / f"{name}.json"
     if not path.is_file():
         raise ManifestError(f"Demo manifest not found: {path}")
     try:

apps/backend/chatballs/identity/demo_seed/orchestrator.py

@@ -8,6 +8,7 @@ foundation → channels/ai → support → conversations → operations.
 
 from __future__ import annotations
 
+from chatballs.i18n import customer_language
 from chatballs.identity.demo_seed.loaders import (
     channels_ai as channels_ai_loader,
 )
@@ -42,6 +43,9 @@ def run_demo_seed(
     refs = refs or DemoRefs()
     refs.organization = context.organization
     refs.recorder = recorder
+    # Демо ставится на языке организации: витрина обязана совпадать с тем,
+    # что человек увидит в остальном интерфейсе.
+    refs.language = customer_language(context.organization)
 
     foundation_loader.load(context, refs)
     channels_ai_loader.load(context, refs)

apps/backend/chatballs/identity/demo_seed/refs.py

@@ -19,6 +19,8 @@ class DemoRefs:
 
     organization: object | None = None
     recorder: object | None = None
+    # Язык набора демо-данных; loaders читают манифесты только на нём.
+    language: str = "ru"
     groups: dict[str, object] = field(default_factory=dict)
     memberships: dict[str, object] = field(default_factory=dict)
     users: dict[str, object] = field(default_factory=dict)

apps/backend/chatballs/identity/demo_seed/service.py

@@ -38,9 +38,11 @@ class DemoBusy(ValidationError):
 def showcase_accounts(organization_id: int) -> list[dict[str, object]]:
     """Учётки для входа «посмотреть глазами сотрудника»: админ и по одному
     сотруднику из разных групп. Пароль общий и намеренно публичный — это демо."""
+    from chatballs.i18n import customer_language
     from chatballs.identity.demo_seed import manifest
 
-    data = manifest.load("organization")
+    organization = Organization.objects.filter(id=organization_id).first()
+    data = manifest.load("organization", customer_language(organization))
     by_key = {item["key"]: item for item in data["accounts"]}
     groups = {item["key"]: item["name"] for item in data.get("groups", [])}
     keys = data.get("showcaseAccounts", [])

apps/backend/chatballs/identity/employee_security_views.py

@@ -27,12 +27,12 @@ class EmployeeResetPasswordView(APIView):
         actor = request.tenant_context.membership
         profile = get_owned_profile(request, user_id)
         if profile is None:
-            return Response({"detail": "Employee not found"}, status=404)
+            return Response({"detail": t("admin.employee_not_found")}, status=404)
         if not can_manage_employee(actor, profile, EmployeeAction.RESET_PASSWORD):
             return deny_employee_action(request, profile, EmployeeAction.RESET_PASSWORD)
         mode = clean_password_mode(request.data.get("mode"))
         if mode is None:
-            return Response({"detail": "Unknown password mode"}, status=400)
+            return Response({"detail": t("admin.unknown_password_mode")}, status=400)
         # Пароль живёт на пользователе, а не на членстве: сбрасывать его из одной
         # организации, когда человек работает и в другой, нельзя.
         if profile.user.memberships.count() > 1:
@@ -58,7 +58,7 @@ class EmployeeRevokeSessionsView(APIView):
         actor = request.tenant_context.membership
         profile = get_owned_profile(request, user_id)
         if profile is None:
-            return Response({"detail": "Employee not found"}, status=404)
+            return Response({"detail": t("admin.employee_not_found")}, status=404)
         if not can_manage_employee(actor, profile, EmployeeAction.TERMINATE_SESSIONS):
             return deny_employee_action(request, profile, EmployeeAction.TERMINATE_SESSIONS)
         revoked = revoke_user_sessions(profile.user_id)
@@ -82,7 +82,7 @@ class EmployeeBlockView(APIView):
         actor = request.tenant_context.membership
         profile = get_owned_profile(request, user_id)
         if profile is None:
-            return Response({"detail": "Employee not found"}, status=404)
+            return Response({"detail": t("admin.employee_not_found")}, status=404)
         if not can_manage_employee(actor, profile, EmployeeAction.BLOCK):
             return deny_employee_action(request, profile, EmployeeAction.BLOCK)
         profile.block()
@@ -105,7 +105,7 @@ class EmployeeUnblockView(APIView):
         actor = request.tenant_context.membership
         profile = get_owned_profile(request, user_id)
         if profile is None:
-            return Response({"detail": "Employee not found"}, status=404)
+            return Response({"detail": t("admin.employee_not_found")}, status=404)
         if not can_manage_employee(actor, profile, EmployeeAction.UNBLOCK):
             return deny_employee_action(request, profile, EmployeeAction.UNBLOCK)
         profile.unblock()

apps/backend/chatballs/identity/employee_validation.py

@@ -1,6 +1,7 @@
 from rest_framework.request import Request
 from rest_framework.response import Response
 
+from chatballs.i18n import t
 from chatballs.identity.audit import record_audit_event
 from chatballs.identity.models import (
     POSITION_TITLE_MAX_LENGTH,
@@ -31,7 +32,7 @@ def resolve_groups(organization, raw: object) -> tuple[list[EmployeeGroup] | Non
     requested = list(dict.fromkeys(raw))
     groups = list(EmployeeGroup.objects.filter(organization=organization, id__in=requested))
     if len(groups) != len(requested):
-        return None, "Group not found"
+        return None, t("admin.group_not_found")
     return groups, None
 
 
@@ -49,4 +50,4 @@ def deny_employee_action(
         payload={"action": action, "targetRole": target.role if target else None},
         request=request,
     )
-    return Response({"detail": "You cannot perform this action on this employee"}, status=403)
+    return Response({"detail": t("admin.action_not_allowed_for_employee")}, status=403)

apps/backend/chatballs/identity/employee_views.py

@@ -67,7 +67,7 @@ class EmployeeListView(APIView):
     def get(self, request: Request) -> Response:
         actor = request.tenant_context.membership
         if not has_capability_any_scope(actor, "employees.view"):
-            return Response({"detail": "Not allowed"}, status=403)
+            return Response({"detail": t("admin.not_allowed")}, status=403)
         page = paginate(
             employees_for(actor.organization_id, request.query_params),
             request.query_params,
@@ -92,23 +92,23 @@ class EmployeeCreateView(APIView):
         requested_role = str(body.get("role", EmployeeRole.EMPLOYEE))
 
         if requested_role not in ASSIGNABLE_ROLES:
-            return Response({"detail": "Invalid role"}, status=400)
+            return Response({"detail": t("admin.invalid_role")}, status=400)
         if not can_create_role(actor, requested_role):
             return deny_employee_action(
                 request, None, f"{EmployeeAction.CREATE}:{requested_role}"
             )
         if not email:
-            return Response({"detail": "Email is required"}, status=400)
+            return Response({"detail": t("admin.email_required")}, status=400)
         if not full_name:
-            return Response({"detail": "Full name is required"}, status=400)
+            return Response({"detail": t("admin.full_name_required")}, status=400)
         if position_error:
             return Response({"detail": position_error}, status=400)
         if provided_password:
-            return Response({"detail": "Temporary passwords are not supported"}, status=400)
+            return Response({"detail": t("admin.temporary_passwords_unsupported")}, status=400)
         if password_mode is None:
-            return Response({"detail": "Unknown password mode"}, status=400)
+            return Response({"detail": t("admin.unknown_password_mode")}, status=400)
         if HumanUser.objects.filter(email=email).exists():
-            return Response({"detail": "Email is already used"}, status=400)
+            return Response({"detail": t("admin.email_taken")}, status=400)
 
         groups, groups_error = resolve_groups(actor.organization, body.get("groupIds"))
         if groups_error:
@@ -164,9 +164,9 @@ class EmployeeDetailView(APIView):
         actor = request.tenant_context.membership
         profile = get_owned_profile(request, user_id)
         if profile is None:
-            return Response({"detail": "Employee not found"}, status=404)
+            return Response({"detail": t("admin.employee_not_found")}, status=404)
         if not has_capability_any_scope(actor, "employees.view"):
-            return Response({"detail": "Employee not found"}, status=404)
+            return Response({"detail": t("admin.employee_not_found")}, status=404)
         return Response({"employee": employee_payload(profile, actor, include_detail=True)})
 
 
@@ -178,7 +178,7 @@ class EmployeeUpdateView(APIView):
         actor = request.tenant_context.membership
         profile = get_owned_profile(request, user_id)
         if profile is None:
-            return Response({"detail": "Employee not found"}, status=404)
+            return Response({"detail": t("admin.employee_not_found")}, status=404)
         if not can_manage_employee(actor, profile, EmployeeAction.UPDATE_PROFILE):
             return deny_employee_action(request, profile, EmployeeAction.UPDATE_PROFILE)
 
@@ -192,18 +192,18 @@ class EmployeeUpdateView(APIView):
         requested_role = str(body.get("role", profile.role))
 
         if not full_name:
-            return Response({"detail": "Full name is required"}, status=400)
+            return Response({"detail": t("admin.full_name_required")}, status=400)
         if not email:
-            return Response({"detail": "Email is required"}, status=400)
+            return Response({"detail": t("admin.email_required")}, status=400)
         if HumanUser.objects.exclude(id=profile.user_id).filter(email=email).exists():
-            return Response({"detail": "Email is already used"}, status=400)
+            return Response({"detail": t("admin.email_taken")}, status=400)
         if position_error:
             return Response({"detail": position_error}, status=400)
 
         role_changing = requested_role != profile.role
         if role_changing:
             if requested_role not in ASSIGNABLE_ROLES:
-                return Response({"detail": "Invalid role"}, status=400)
+                return Response({"detail": t("admin.invalid_role")}, status=400)
             if not can_manage_employee(actor, profile, EmployeeAction.CHANGE_ROLE):
                 return deny_employee_action(request, profile, EmployeeAction.CHANGE_ROLE)
 

apps/backend/chatballs/identity/group_models.py

@@ -4,6 +4,7 @@ from django.core.exceptions import ValidationError
 from django.db import models
 from django.db.models.functions import Lower
 
+from chatballs.i18n import t
 from chatballs.identity.models import Organization, OrganizationMembership
 from chatballs.tenancy.models import TenantRelationModel
 
@@ -39,7 +40,7 @@ class EmployeeGroup(models.Model):
     def clean(self) -> None:
         self.name = self.name.strip()
         if not self.name:
-            raise ValidationError({"name": "Group name is required"})
+            raise ValidationError({"name": t("admin.group_name_required")})
 
 
 class EmployeeGroupMember(TenantRelationModel):

apps/backend/chatballs/identity/group_views.py

@@ -55,7 +55,7 @@ def _resolve_members(organization, raw) -> tuple[list[OrganizationMembership] |
         )
     )
     if len(members) != len(requested):
-        return None, "Employee not found"
+        return None, t("admin.employee_not_found")
     return members, None
 
 
@@ -121,7 +121,7 @@ class GroupDetailView(APIView):
     def patch(self, request: Request, group_id: int) -> Response:
         group = self._group(request, group_id)
         if group is None:
-            return Response({"detail": "Group not found"}, status=404)
+            return Response({"detail": t("admin.group_not_found")}, status=404)
         if "color" in request.data:
             color = _clean_color(request.data.get("color"))
             if color is None:
@@ -163,7 +163,7 @@ class GroupDetailView(APIView):
     def delete(self, request: Request, group_id: int) -> Response:
         group = self._group(request, group_id)
         if group is None:
-            return Response({"detail": "Group not found"}, status=404)
+            return Response({"detail": t("admin.group_not_found")}, status=404)
         # SET_NULL на каналах и диалогах: их диалоги становятся общими.
         group_payload = _group_payload(group)
         group.delete()

apps/backend/chatballs/identity/instance_settings.py

@@ -136,6 +136,20 @@ def default_language() -> str:
     return normalize_language(row.default_language) if row is not None else ""
 
 
+def remember_default_language(language: str) -> None:
+    """Записать язык установки. Пустое значение ничего не меняет."""
+
+    from chatballs.i18n.languages import normalize_language
+
+    code = normalize_language(language)
+    if not code:
+        return
+    row = InstanceSettings.load()
+    if row.default_language != code:
+        row.default_language = code
+        row.save(update_fields=["default_language", "updated_at"])
+
+
 def remember_public_host(raw_host: str, scheme: str = "http") -> None:
     """Запомнить адрес, на котором прошли мастер, если он ещё не задан."""
 

apps/backend/chatballs/identity/instance_views.py

@@ -149,7 +149,7 @@ class InstanceAddressView(APIView):
             except (TypeError, ValueError):
                 return Response(
                     {"detail": t("settings.ttl_is_seconds"),
-                     "errors": {"turnTtlSeconds": "Число секунд"}},
+                     "errors": {"turnTtlSeconds": t("settings.seconds_number")}},
                     status=400,
                 )
             fields += ["turn_urls", "turn_ttl_seconds"]
@@ -185,11 +185,8 @@ class InstanceEmailCheckView(APIView):
         recipient = str(request.data.get("email", "")).strip() or request.user.email
         try:
             send_mail(
-                subject="Проверка почты Chatballs",
-                message=(
-                    "Это тестовое письмо из «Настроек». "
-                    "Если вы его читаете, почта установки работает."
-                ),
+                subject=t("settings.mail_test_subject"),
+                message=t("settings.mail_test_body"),
                 from_email=email_from_address(),
                 recipient_list=[recipient],
                 connection=connection,

apps/backend/chatballs/identity/invitation_service.py

@@ -8,6 +8,7 @@ from datetime import datetime
 from django.db import transaction
 from django.utils import timezone
 
+from chatballs.i18n import t
 from chatballs.identity.audit import record_audit_event
 from chatballs.identity.models import (
     EmployeeRole,
@@ -99,12 +100,12 @@ def accept_invitation(*, token: str, user: HumanUser) -> AcceptedInvitation:
         if already is not None:
             return already
         raise InvitationError(
-            "Invitation is invalid or has expired", code="invitation_invalid"
+            t("identity.invitation_invalid"), code="invitation_invalid"
         )
     normalized_email = user.email.strip().lower()
     if invitation.email.strip().lower() != normalized_email:
         raise InvitationError(
-            "Invitation email does not match the account", code="email_mismatch"
+            t("identity.invitation_email_mismatch"), code="email_mismatch"
         )
 
     organization = invitation.organization
@@ -143,7 +144,7 @@ def _ensure_owner_membership(
         # An existing non-OWNER membership for this user should not be silently
         # promoted by an invitation; surface as a conflict instead.
         raise InvitationError(
-            "User already has a different role in this organization",
+            t("identity.role_conflict"),
             code="role_conflict",
         )
     return membership

apps/backend/chatballs/identity/ownership_views.py

@@ -4,6 +4,7 @@ from rest_framework.request import Request
 from rest_framework.response import Response
 from rest_framework.views import APIView
 
+from chatballs.i18n import t
 from chatballs.identity.audit import record_audit_event
 from chatballs.identity.employee_support import employee_payload
 from chatballs.identity.employee_validation import (
@@ -31,16 +32,16 @@ class OwnershipTransferView(APIView):
                 .get(user_id=user_id, organization=actor.organization)
             )
         except OrganizationMembership.DoesNotExist:
-            return Response({"detail": "Employee not found"}, status=404)
+            return Response({"detail": t("admin.employee_not_found")}, status=404)
 
         if not can_manage_employee(actor, target, EmployeeAction.TRANSFER_OWNERSHIP):
             return deny_employee_action(request, target, EmployeeAction.TRANSFER_OWNERSHIP)
         if target.is_blocked or not target.user.is_active:
-            return Response({"detail": "Target must be an active employee"}, status=409)
+            return Response({"detail": t("admin.target_must_be_active")}, status=409)
 
         previous_owner_role = str(request.data.get("previousOwnerRole", EmployeeRole.ADMIN))
         if previous_owner_role not in ASSIGNABLE_ROLES:
-            return Response({"detail": "Previous owner role must be ADMIN or EMPLOYEE"}, status=400)
+            return Response({"detail": t("admin.previous_owner_role")}, status=400)
 
         actor.role = previous_owner_role
         actor.save(update_fields=["role"])

apps/backend/chatballs/identity/password_validation.py

@@ -22,4 +22,4 @@ class PasswordComplexityValidator:
             raise ValidationError(t("identity.password_needs_special"), code="password_no_special")
 
     def get_help_text(self) -> str:
-        return "Пароль должен содержать букву, цифру и спецсимвол."
+        return t("identity.password_help")

apps/backend/chatballs/identity/sessions.py

@@ -13,6 +13,8 @@ import re
 from django.contrib.sessions.models import Session
 from django.utils import timezone
 
+from chatballs.i18n import t
+
 SESSION_AGENT_KEY = "device_agent"
 SESSION_IP_KEY = "device_ip"
 SESSION_STARTED_KEY = "device_started"
@@ -44,7 +46,7 @@ def describe_agent(user_agent: str) -> str:
     platform = next((label for token, label in _PLATFORMS if token in user_agent), "")
     if browser and platform:
         return f"{browser} · {platform}"
-    return browser or platform or "Браузер"
+    return browser or platform or t("identity.browser_unknown")
 
 
 def device_kind(user_agent: str) -> str:

apps/backend/chatballs/identity/setup.py

@@ -19,12 +19,13 @@ from django.contrib.auth.password_validation import validate_password
 from django.core.exceptions import ValidationError
 from django.core.validators import validate_email
 from django.db import connections, transaction
+from django.utils import translation
 from django.utils.text import slugify
 
 from chatballs.ai.knowledge_categories import ensure_uncategorized_category
-from chatballs.i18n import t
+from chatballs.i18n import INHERIT, current_language, normalize_language, t
 from chatballs.identity.audit import record_audit_event
-from chatballs.identity.instance_settings import remember_public_host
+from chatballs.identity.instance_settings import remember_default_language, remember_public_host
 from chatballs.identity.models import (
     EmployeeRole,
     HumanUser,
@@ -55,6 +56,9 @@ class SetupInput:
     email: str
     password: str
     install_demo: bool = False
+    # Язык установки, выбранный в мастере. Пусто — язык браузера, на котором
+    # мастер и открылся: человек его не трогал, значит он верен.
+    language: str = INHERIT
 
 
 @dataclass(frozen=True)
@@ -79,17 +83,17 @@ def _clean(data: SetupInput) -> SetupInput:
     if not organization_name:
         errors["organizationName"] = t("admin.organization_name_required")
     elif len(organization_name) > ORGANIZATION_NAME_MAX_LENGTH:
-        errors["organizationName"] = "Название длиннее 255 символов"
+        errors["organizationName"] = t("admin.name_too_long")
     full_name = " ".join(data.full_name.split())
     if not full_name:
-        errors["fullName"] = "Укажите ваше имя"
+        errors["fullName"] = t("setup.your_name_required")
     elif len(full_name) > FULL_NAME_MAX_LENGTH:
-        errors["fullName"] = "Имя длиннее 255 символов"
+        errors["fullName"] = t("setup.your_name_too_long")
     email = data.email.strip()
     try:
         validate_email(email)
     except ValidationError:
-        errors["email"] = "Укажите корректный e-mail"
+        errors["email"] = t("setup.email_invalid")
     if errors:
         raise ValidationError(errors)
     return SetupInput(
@@ -98,6 +102,7 @@ def _clean(data: SetupInput) -> SetupInput:
         email=HumanUser.objects.normalize_email(email).lower(),
         password=data.password,
         install_demo=data.install_demo,
+        language=normalize_language(data.language),
     )
 
 
@@ -113,6 +118,24 @@ def _unique_slug(name: str) -> str:
 
 def complete_setup(
     data: SetupInput, public_host: str = "", public_scheme: str = "http"
+) -> SetupResult:
+    """Создать установку целиком: язык, организация, владелец, демо-данные.
+
+    Язык выбирается первым и держится активным до конца: на нём написана
+    должность владельца, на нём приедут демо-данные и на нём вернутся ошибки
+    формы. Иначе установка на английском получила бы русскую запись «Владелец»
+    в карточке сотрудника — с первой же секунды и навсегда.
+    """
+
+    # Пусто — берём язык, который middleware уже вывела из Accept-Language:
+    # именно на нём человек видел форму, пока её заполнял.
+    language = normalize_language(data.language) or current_language()
+    with translation.override(language):
+        return _complete_setup(data, language, public_host, public_scheme)
+
+
+def _complete_setup(
+    data: SetupInput, language: str, public_host: str, public_scheme: str
 ) -> SetupResult:
     clean = _clean(data)
     with use_database(INSTANCE_DB_ALIAS), transaction.atomic(using=INSTANCE_DB_ALIAS):
@@ -120,6 +143,7 @@ def complete_setup(
         # установки: другого источника у коробки нет.
         if public_host:
             remember_public_host(public_host, public_scheme)
+        remember_default_language(language)
         # Блокировка от гонки двух вкладок: второй запрос дождётся первого и
         # увидит созданную организацию.
         with connections[INSTANCE_DB_ALIAS].cursor() as cursor:
@@ -150,7 +174,7 @@ def complete_setup(
                 user=owner,
                 organization=organization,
                 role=EmployeeRole.OWNER,
-                position_title="Владелец",
+                position_title=t("setup.owner_position"),
                 totp_required=False,
             )
             record_audit_event(

apps/backend/chatballs/identity/setup_views.py

@@ -33,7 +33,7 @@ def _validation_response(error: ValidationError) -> Response:
         if "__all__" in errors:
             errors["password"] = " ".join(error.message_dict["__all__"])
             del errors["__all__"]
-        detail = next(iter(errors.values()), "Проверьте заполненные поля")
+        detail = next(iter(errors.values()), t("setup.check_fields"))
         return Response({"detail": detail, "errors": errors}, status=400)
     message = " ".join(error.messages)
     return Response({"detail": message, "errors": {"password": message}}, status=400)
@@ -67,6 +67,7 @@ class SetupView(APIView):
                     email=str(body.get("email", "")),
                     password=str(body.get("password", "")),
                     install_demo=bool(body.get("installDemo", False)),
+                    language=str(body.get("language", "")),
                 ),
                 public_host=request.get_host(),
                 public_scheme=request.scheme,

apps/backend/chatballs/identity/test_seed_demo.py

@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import json
+import re
 import tempfile
 
 from django.apps import apps
@@ -22,6 +23,7 @@ from chatballs.events.models import OutboxEvent
 from chatballs.identity.demo_models import DemoDataset, DemoDatasetStatus, DemoRecord
 from chatballs.identity.demo_seed import service
 from chatballs.identity.group_models import EmployeeGroup
+from chatballs.identity.instance_settings import default_language
 from chatballs.identity.models import HumanUser, Organization, OrganizationMembership
 from chatballs.identity.setup import SetupInput, complete_setup
 from chatballs.tenancy.context import TenantActorKind, TenantContext
@@ -243,3 +245,43 @@ class SetupWizardDemoTests(TestCase):
         dataset = DemoDataset.objects.get()
         self.assertEqual(dataset.status, DemoDatasetStatus.INSTALLING)
         self.assertTrue(OutboxEvent.objects.filter(event_type="demo.install_requested").exists())
+
+
+class EnglishDemoDatasetTests(TestCase):
+    """Демо на английской установке: набор ставится английский, целиком.
+
+    Витрина показывает продукт целиком, и русская переписка в английском
+    интерфейсе обесценивает её ровно так же, как непереведённая кнопка.
+    """
+
+    @override_settings(MEDIA_ROOT=_MEDIA_ROOT)
+    def test_english_organization_gets_the_english_dataset(self) -> None:
+        result = complete_setup(SetupInput(**OWNER, language="en"))
+        organization = result.organization
+        context = TenantContext.for_resource(
+            organization, actor_kind=TenantActorKind.SYSTEM, actor_user=result.owner
+        )
+        with tenant_atomic(context):
+            dataset = DemoDataset.objects.create(
+                organization=organization, status=DemoDatasetStatus.INSTALLING
+            )
+            dataset = service.install(context=context, dataset=dataset)
+        self.assertEqual(dataset.status, DemoDatasetStatus.INSTALLED, dataset.error)
+
+        # Язык установки пришёл из мастера и достался организации по наследству.
+        self.assertEqual(default_language(), "en")
+
+        self.assertTrue(
+            Contact.objects.filter(organization=organization, name="Maria Sokolova").exists()
+        )
+        self.assertTrue(
+            AIAgent.objects.filter(organization=organization, name="Consultant").exists()
+        )
+        # Ни одной кириллической буквы во всём, что увидит человек на экране.
+        texts = [
+            *Message.objects.filter(organization=organization).values_list("text", flat=True),
+            *Knowledge.objects.filter(organization=organization).values_list("content", flat=True),
+            *Contact.objects.filter(organization=organization).values_list("description", flat=True),
+        ]
+        cyrillic = [text for text in texts if re.search(r"[А-Яа-яЁё]", text or "")]
+        self.assertEqual(cyrillic, [], f"английское демо содержит русский текст: {cyrillic[:3]}")

apps/backend/chatballs/integrations/checks.py

@@ -22,6 +22,7 @@ import urllib.request
 
 from django.conf import settings
 
+from chatballs.i18n import t, tn
 from chatballs.integrations.proxy import build_opener
 
 DEFAULT_OPENROUTER_BASE_URL = "https://openrouter.ai/api/v1"
@@ -51,19 +52,19 @@ def _safe(fn) -> CheckResult:
     except urllib.error.HTTPError as error:
         return False, f"HTTP {error.code}: {error.reason}", {}
     except (urllib.error.URLError, TimeoutError, OSError) as error:
-        return False, f"Нет связи: {error}", {}
+        return False, t("integrations.check_no_connection", error=error), {}
 
 
 def check_openrouter(*, secret: str, base_url: str, proxy_url: str = "") -> CheckResult:
     if not secret:
-        return False, "Не указан API-ключ", {}
+        return False, t("integrations.check_api_key_missing"), {}
     base = (base_url or DEFAULT_OPENROUTER_BASE_URL).rstrip("/")
 
     def run() -> CheckResult:
         status, data = _get(f"{base}/key", headers={"Authorization": f"Bearer {secret}"}, proxy_url=proxy_url)
         if status != 200:
-            return False, f"OpenRouter ответил {status}", {}
-        label = (data.get("data") or {}).get("label") or "ключ принят"
+            return False, t("integrations.check_provider_answered", provider="OpenRouter", status=status), {}
+        label = (data.get("data") or {}).get("label") or t("integrations.check_key_accepted")
         return True, f"OpenRouter: {label}", {}
 
     return _safe(run)
@@ -77,38 +78,38 @@ def check_custom(*, secret: str, base_url: str, proxy_url: str = "") -> CheckRes
     shape by listing models. GET /models with Authorization: Bearer <key>.
     """
     if not secret:
-        return False, "Не указан API-ключ", {}
+        return False, t("integrations.check_api_key_missing"), {}
     if not base_url:
-        return False, "Не указан Base URL", {}
+        return False, t("integrations.check_base_url_missing"), {}
 
     base = base_url.rstrip("/")
 
     def run() -> CheckResult:
         status, data = _get(f"{base}/models", headers={"Authorization": f"Bearer {secret}"}, proxy_url=proxy_url)
         if status != 200:
-            return False, f"Эндпоинт ответил {status}", {}
+            return False, t("integrations.check_endpoint_answered", status=status), {}
         # OpenAI shape: {"data": [{"id": "..."}, ...]}. Каталог не является
         # разрешительным списком (ADR-CHATBALLS-0020:89), ответственность за model
         # identifier лежит на владельце (ADR-CHATBALLS-0034 §4).
         count = len(data.get("data") or [])
-        return True, f"Эндпоинт отвечает: {count} моделей", {}
+        return True, tn("integrations.check_endpoint_models", count), {}
 
     return _safe(run)
 
 
 def check_max(*, secret: str, base_url: str, proxy_url: str = "") -> CheckResult:
     if not secret:
-        return False, "Не указан токен бота", {}
+        return False, t("integrations.check_bot_token_missing"), {}
     base = (base_url or DEFAULT_MAX_BASE_URL).rstrip("/")
 
     def run() -> CheckResult:
         # MAX: токен в заголовке Authorization (без Bearer), метод GET /me.
         status, data = _get(f"{base}/me", headers={"Authorization": secret}, proxy_url=proxy_url)
         if status != 200:
-            return False, f"MAX ответил {status}", {}
+            return False, t("integrations.check_provider_answered", provider="MAX", status=status), {}
         bot_id = data.get("user_id")
         username = data.get("username") or ""
-        name = data.get("name") or username or "бот подключён"
+        name = data.get("name") or username or t("integrations.check_bot_connected")
         meta = {"bot_id": str(bot_id) if bot_id else "", "bot_username": username, "bot_name": name}
         return True, f"MAX: {name}", meta
 
@@ -129,9 +130,9 @@ def check_email(*, secret: str, config: dict) -> CheckResult:
     imap_host = str(config.get("imap_host", "")).strip()
     smtp_host = str(config.get("smtp_host", "")).strip()
     if not secret:
-        return False, "Не указан пароль ящика", {}
+        return False, t("integrations.check_mailbox_password_missing"), {}
     if not address or not imap_host or not smtp_host:
-        return False, "Не заполнены адрес, IMAP- или SMTP-хост", {}
+        return False, t("integrations.check_mail_hosts_missing"), {}
     timeout = settings.CHATBALLS_AI_REQUEST_TIMEOUT
 
     try:
@@ -169,20 +170,20 @@ def check_email(*, secret: str, config: dict) -> CheckResult:
 
 def check_telegram(*, secret: str, base_url: str, proxy_url: str = "") -> CheckResult:
     if not secret:
-        return False, "Не указан токен бота", {}
+        return False, t("integrations.check_bot_token_missing"), {}
     base = (base_url or DEFAULT_TELEGRAM_BASE_URL).rstrip("/")
 
     def run() -> CheckResult:
         # Telegram: токен в пути /bot<token>/getMe.
         status, data = _get(f"{base}/bot{secret}/getMe", proxy_url=proxy_url)
         if status != 200 or not data.get("ok"):
-            return False, f"Telegram ответил {status}", {}
+            return False, t("integrations.check_provider_answered", provider="Telegram", status=status), {}
         result = data.get("result") or {}
         bot_id = result.get("id")
         username = result.get("username") or ""
         name = result.get("first_name") or username or "бот подключён"
         meta = {"bot_id": str(bot_id) if bot_id else "", "bot_username": username, "bot_name": name}
-        detail = f"Telegram: @{username}" if username else "Telegram: бот подключён"
+        detail = f"Telegram: @{username}" if username else f'Telegram: {t("integrations.check_bot_connected")}'
         return True, detail, meta
 
     return _safe(run)
@@ -190,4 +191,4 @@ def check_telegram(*, secret: str, base_url: str, proxy_url: str = "") -> CheckR
 
 def check_demo(*, secret: str, base_url: str, proxy_url: str = "") -> CheckResult:
     """Демо-провайдер не ходит в сеть — всегда готов."""
-    return True, "Демо-провайдер: отвечает по знаниям агента, без внешних запросов и ключей", {}
+    return True, t("integrations.check_demo"), {}