* feat: add Notes and Todos as agent chat context
- Send selected Note/Todo IDs from the Notes UI
- Load selected notes with owner scoping in chat routes
- Format note content and checklist items for the model
- Inject selected notes as untrusted chat context
- Add a selected-context indicator beside Shell Access
- Keep selected context associated with the active chat session
* Improved selected notes context handling and discouragin redundant note lookup and permission requests
* Fix selected notes UI when switching chats
* fix(notes): harden selected context lifecycle and validation
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Co-authored-by: Alexandre Teixeira <111787685+alteixeira20@users.noreply.github.com>
