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

app/main.py

@@ -0,0 +1,18 @@
+from fastapi import FastAPI
+from app.api.routes import videos
+from app.database import engine, Base
+
+Base.metadata.create_all(bind=engine)
+
+app = FastAPI(
+    title="Video Register API",
+    description="API for registering and searching video metadata",
+    version="1.0.0",
+)
+
+app.include_router(videos.router)
+
+
+@app.get("/health")
+def health_check():
+    return {"status": "ok"}