Record playback heartbeats via POST /api/v1/videos/engagement/heartbeat and expose completion, replay, and drop-off rates on the analytics dashboard.
Co-authored-by: Cursor <cursoragent@cursor.com>
Expose user counts by education_level, occupation, learning_goal, and language_challange on GET /api/v1/analytics/dashboard.
Co-authored-by: Cursor <cursoragent@cursor.com>
Support all-time, year, year+month, and custom from/to query params with filtered metrics and time-series charts.
Co-authored-by: Cursor <cursoragent@cursor.com>