New Features
- add plan mode toggle and refresh meta bar icons
- render compact file links with line numbers
- workspaces/worktrees UX + Environments settings + response-required notifications (#339)
Fixes
- clamp skill suggestion descriptions in composer
- refresh list on canonical skills_update_available event
- avoid debounce updates during jsdom teardown
- only treat active plan as present when plan data exists
- re-notify when resolved request IDs are reused