Initial commit: Video metadata registration service

- Add FastAPI server for video metadata registration
- PostgreSQL database models for videos, video_streams, audio_streams, subtitle_streams
- Batch registration script for .probe.json files
- RESTful API endpoints for CRUD operations
- Search functionality by title, artist, codec, resolution

scripts/register_batch.py

@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+import os
+import sys
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).parent.parent))
+
+from app.database import SessionLocal
+from app.services.video_register import VideoRegisterService
+
+
+def main():
+    if len(sys.argv) < 2:
+        print("Usage: python register_batch.py <directory>")
+        print("Example: python register_batch.py ../test_video")
+        sys.exit(1)
+
+    directory = sys.argv[1]
+
+    if not os.path.isdir(directory):
+        print(f"Error: Directory not found: {directory}")
+        sys.exit(1)
+
+    print(f"Scanning directory: {directory}")
+    print("=" * 60)
+
+    db = SessionLocal()
+    try:
+        service = VideoRegisterService(db)
+        videos = service.register_batch(directory)
+
+        print("=" * 60)
+        print(f"Total registered: {len(videos)} videos")
+    finally:
+        db.close()
+
+
+if __name__ == "__main__":
+    main()