- init_db()에 video_projects, revenue_records 테이블 추가 (CREATE IF NOT EXISTS)
- video_projects CRUD: create/get/get_all/update_status/delete + get_track_by_id
- revenue_records CRUD: create/get_all/update/delete/get_revenue_dashboard (RPM 자동 계산)
- TDD: tests/test_db_video.py 5개 테스트 모두 PASSED
- pytest.ini 추가 (pythonpath=. 설정)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>