Clears the remaining no-unused-vars warnings across the dashboard app and
server, desktop main, and engine sources. Dead React state destructures are
collapsed to setter-only, unused props are underscore-prefixed to preserve
API shape, and unreferenced catch bindings are dropped. No behaviour change.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- Render full template prompt text in cards with a scrollable preview area instead of truncation
- Add expand controls for built-in and custom templates to open a single fullscreen dialog view with Escape/collapse handling
- Align template expand buttons to shared icon-button styling for consistent UI behavior
- Extend AgentPromptsManager tests to cover preview overflow styles and fullscreen interactions across built-in/custom templates
- Add POST /routines/:id/trigger as canonical endpoint for manual routine triggers
- Keep POST /routines/:id/run as backward-compatible alias
- Remove duplicate recordRun calls from routine route handlers (persistence handled by RoutineRunner)
- Update webhook auth to return 401 instead of 403 for signature failures
- Fix TypeScript types for promptOverrides to support null values (delete semantics)
- Fix API endpoint to return empty diff stats when worktree doesn't exist
