Merge origin/main into feat/cursor-cli

Merges latest main branch changes including:
- MCP server support and configuration
- Pipeline configuration system
- Prompt customization settings
- GitHub issue comments in validation
- Auth middleware improvements
- Various UI/UX improvements

All Cursor CLI features preserved:
- Multi-provider support (Claude + Cursor)
- Model override capabilities
- Phase model configuration
- Provider tabs in settings

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/ui/src/store/setup-store.ts

@@ -201,6 +201,7 @@ export const useSetupStore = create<SetupState & SetupActions>()(
         isFirstRun: state.isFirstRun,
         setupComplete: state.setupComplete,
         skipClaudeSetup: state.skipClaudeSetup,
+        claudeAuthStatus: state.claudeAuthStatus,
       }),
     }
   )