* fix: stale model variants in chat controls in draft session
* fix: attention indicator for project tabs
* fix: use part index and type for consistent IDs
* fix question card navigation for unanswered questions
* feat: show current branch in empty chat state
* fix: display current git branch for worktrees and update them with branch change
* refactor: improve read tool output parsing with structured data
* feat: add support for message part delta events
* fix(chat): improve streaming rendering, scroll behavior, and assistant action visibility
* feat: Add mermaid diagram support to chat markdown rendering
* fix: update table download functionality to include success notification and remove unused MarkdownRenderer import
* refactor: streamline Streamdown component props for improved readability
* fix: preserve Streamdown code-block markers and use native Tauri cache clearing
* feat: add context overview panel to view conversation details
* feat: message list refactoring and optimizations
* refactor: collapse 3 memory-limit settings into single messageLimit
- Replace memoryLimitHistorical/Viewport/ActiveSession with one `messageLimit` (default 200)
- Background trim derived automatically (limit * 0.6), not user-facing
- Fix stale historyLimit overriding current messageLimit on session reload
- Remove streaming cap that reduced fetch to VIEWPORT_MESSAGES during active streams
- Deduplicate detectTurns() call in TurnGroupingContext (reuse staticValue.turns)
- Zustand v3 migration: collapse old fields, preserve user-customized values
- Server: sanitize single messageLimit field (10-500)
* feat: add chat virtualization and turn grouping infrastructure
Implement VirtualMessageList with virtualization and overscan for smooth scrolling
Refactor MessageList to render only visible messages and pass scroll refs
Introduce TurnGroupingContext and provider to stabilize per-turn rendering and reduce re-renders
* feat: add web server session activity endpoint for visibility restore
Add /api/session-activity endpoint to expose tracked session activity
Use web server activity first when restoring visibility, with fallback to global status
Update server SSE to set session phase on activity events
* feat(chat): split TurnGroupingContext into UI/Streaming contexts
Add separate UI state and streaming contexts to reduce re-renders.
Skip animations for items visible in collapsed view when expanding.
Track shown parts in collapsed mode to fade in progressively
* feat(ui): cache turn groups with expand state and guard web activity
Add isExpanded to the turn cache key to trigger updates correctly
Expose isGroupExpanded from UI state so groups reflect expand/collapse
Limit web server session activity fetch to web runtime only
Bohdan Triapitsyn