Audited all proxy()/useSnapshot() usage against the v1→v2 migration
guide; no breaking changes apply (no reused proxy() inputs, no
promise-valued state, all consumers already client components).
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **Chores**
* Updated the Valtio dependency to a newer version for improved
compatibility.
* **Bug Fixes**
* Improved AI assistant persistence in IndexedDB so chat sessions
reliably save (while keeping only the most recent 20 messages per chat).
* Hardened tabs restoration from storage to fall back to fresh defaults
when data is missing, invalid, or fails validation.
* **Refactor**
* Switched multiple studio panels to use fresh initial-state factories
for initialization and reset reliability.
* Updated advisor state so the derived notification filter count is no
longer exposed.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Mark provenance of SQL via the branded types SafeSqlFragment and
UntrustedSqlFragment. Only SafeSqlFragment should be executed;
UntrustedSqlFragments require some kind of implicit user approval (show
on screen + user has to click something) before they are promoted to
SafeSqlFragment.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Editor and RLS tester show loading states for inferred/generated SQL
and include a dedicated user SQL editor for safer edits.
* **Refactor**
* Platform-wide SQL handling tightened: snippets and AI-generated SQL
are treated as untrusted/display-only until promoted, improving safety
and consistency.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
- EditorPanel can now load, save, and rename SQL snippets inline
- New SaveSnippetDialog component for saving snippets with AI-generated
titles
- EditorPanel state tracks active snippet ID and pending reset
- EditQueryButton opens the inline editor panel instead of navigating to
SQL editor page
- AIEditor exposes onMount callback for editor instance access
- SnippetDropdown label updated to "Create snippet"
## TO TEST
### Normal CRUD
- open inline SQL Editor
- try creating a new snippet
- try editing an existing snippet
### Homepage V2 Report
- Try adding a new block → create snippet
- create the snippet in inline sql editor
- select the snippet in the report block section