Add CreatorAnalyticsHandler with endpoints:
- GET /api/v1/creator/analytics/dashboard (F381)
- GET /api/v1/creator/analytics/plays (F382)
- GET /api/v1/creator/analytics/sales (F383)
- GET /api/v1/creator/analytics/discovery (F381)
- GET /api/v1/creator/analytics/geographic (F381)
- GET /api/v1/creator/analytics/audience (F384)
- GET /api/v1/creator/analytics/live/:streamId (F385)
- GET /api/v1/creator/analytics/tracks (F381)
- GET /api/v1/creator/analytics/export (F383)
All endpoints require authentication and only return data for the authenticated creator.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>