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## I have read the [CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md) file. YES ## What kind of change does this PR introduce? Feature — final PR (9/9) of the SQL editor logs-source stack. **Base branch:** `charislam/sql-editor-inline-ai-clickhouse-dialect` (PR 8). Nothing here is user-visible: entry points stay behind `sqlEditorLogsSource` + `otelLegacyLogs`, and flag rollout happens after the whole stack merges. ## What is the current behavior? - The Assistant has no idea a SQL editor snippet targets the logs backend. Ask it about a logs snippet and it answers in Postgres, because the attached query is fenced as ` ```sql ` and nothing tells the model otherwise. - Because the `sql` fence is what `MessageMarkdown` treats as runnable Postgres, an attached ClickHouse query is rendered with a Run-against-Postgres affordance and branded with `untrustedSql`. - "Debug with Assistant" on a failed logs query produces a dialect-less prompt, so both the in-app assistant and the copyable version get debugged as Postgres. - A report referencing a `log_sql` snippet runs its ClickHouse SQL against the user's Postgres database and surfaces the resulting error. ## What is the new behavior? **Assistant panel.** The "Current Query" chip records which backend the attached query targets. That reaches the model two ways: each attachment is fenced with its own dialect (` ```clickhouse ` vs ` ```sql `), and a `containsLogsSnippets` flag rides on the user message as AI SDK `metadata`. The server reads the flag off the conversation and prepends the ClickHouse dialect rules plus the logs schema reference as a non-cached context message. Two design points worth calling out in review: - The flag lives on the **message**, not the request body, so Retry and the tool-approval continuation reproduce the context a message was originally asked in — neither of those passes a per-call body. - It's derived from **what's actually attached**, so detaching the chip drops the claim rather than leaving the two able to disagree. The `clickhouse` fence also keeps a logs query out of `MessageMarkdown`'s `sql` branch, so it's no longer offered as runnable Postgres or branded with `untrustedSql` — a boundary this stack's distinct brands exist to prevent crossing. **Debug flow.** `buildDebugChatArgs` attaches its query with a source for the same reason, and names the dialect in the prompt text so the copyable version stands on its own outside the app. **Reports.** A report only stores a snippet id, so whether it queries the logs backend is only knowable once the content loads. `ReportBlock` guards on the fetched type and renders a `LogsSnippetReportBlock` placeholder instead of executing. Double-guarded: no `sql` for a logs snippet (so it's out of the query key and `queryFn` short-circuits even on an explicit `refetch`) and `enabled` excludes it. **Incidental cleanups.** `buildAssistantContextMessages` extracted out of `generate-assistant-response`; a schema-access sentinel that was duplicated as a string literal across two files (and compared against) replaced with one exported constant; `SqlSnippet` deduplicated to a single declaration; `resolveSnippetSource` / `isLogsSource` shared instead of re-implemented per surface. **Tests.** 4 new/extended suites. Notable cases pinned: a message with no metadata must validate (`safeValidateUIMessages` applies `metadataSchema` to *every* message, so a required schema would 400 every existing conversation); only *user* messages count, so a model reply can't talk the server into a different dialect; a mixed-attachment message is flagged without overclaiming a single source; and `ReportBlock` registers no pg-meta mock for the logs cases, so an unhandled request failing the test *is* the assertion that logs SQL never reaches Postgres. Verified: `pnpm typecheck`, `lint:ratchet` (no regression), Prettier, and the full Studio suite (459 files / 4969 tests). ## Additional context <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit - **New Features** - Added support for recognizing log snippets in reports, with clear guidance to open them in the SQL editor or remove them. - AI Assistant now understands log snippets and provides ClickHouse-specific context, formatting, and troubleshooting guidance. - Snippets retain their source information when shared with the AI Assistant. - **Bug Fixes** - Prevented unsupported log snippets from being executed as regular database queries. - Improved source detection when opening snippets directly from links. <!-- end of auto-generated comment: release notes by coderabbit.ai -->