Code Review Summary

This PR contains concurrent agent updates across two templates:

Clips Desktop (Audio Cue Feature):
PR adds an audio cue (880Hz→660Hz sweep, 200ms) when screen recording starts on desktop. Implementation uses Web Audio API with proper resource cleanup, graceful fallback for unsupported browsers, and 5-minute auto-cleanup timeout. Integration with recording lifecycle is clean — cue plays after MediaRecorder starts, cleanup is added to the stream cleanup array.

Calendar Template (Google Calendar Integration):
PR adds support for the Google Calendar htmlLink field to enable opening events directly in Google Calendar. Changes propagate consistently through: Google Calendar API layer → server handlers → actions → shared API types → React components. Feature includes URL validation (https + calendar.google.com/www.google.com/calendar/ hostname checks) and proper pop-up handling with fallback.

Risk Assessment: Standard (🟡)

• Calendar htmlLink is a new optional field with safe defaults
• URL validation is in place before opening
• Pop-up handling follows browser best practices
• Audio cue is a progressive enhancement with full error recovery

Browser Testing Status: 🧪 Skipped — PR only modifies backend/template logic, calendar routing, and audio initialization; no user-facing UI component changes that require live verification. Calendar feature can be verified via E2E tests checking URL routing.