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/api/routes/__init__.py

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+# routes package

app/api/routes/videos.py

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+import os
+from typing import Optional
+from uuid import UUID
+from fastapi import APIRouter, Depends, HTTPException, Query
+from sqlalchemy.orm import Session
+from app.database import get_db
+from app.models.schemas import VideoSchema, VideoListResponse, RegisterRequest
+from app.services.video_register import VideoRegisterService
+
+router = APIRouter(prefix="/videos", tags=["videos"])
+
+
+@router.post("", response_model=VideoSchema)
+def register_video(request: RegisterRequest, db: Session = Depends(get_db)):
+    if not os.path.exists(request.probe_json_path):
+        raise HTTPException(status_code=404, detail="Probe JSON file not found")
+
+    if not os.path.exists(request.absolute_file_path):
+        raise HTTPException(status_code=404, detail="Video file not found")
+
+    service = VideoRegisterService(db)
+    video = service.register_video(request.probe_json_path, request.absolute_file_path)
+
+    return video
+
+
+@router.get("/{video_id}", response_model=VideoSchema)
+def get_video(video_id: UUID, db: Session = Depends(get_db)):
+    service = VideoRegisterService(db)
+    video = service.get_video_by_id(video_id)
+
+    if not video:
+        raise HTTPException(status_code=404, detail="Video not found")
+
+    return video
+
+
+@router.get("", response_model=VideoListResponse)
+def search_videos(
+    title: Optional[str] = Query(None, description="Search by title"),
+    artist: Optional[str] = Query(None, description="Search by artist"),
+    codec_name: Optional[str] = Query(None, description="Search by video codec"),
+    min_width: Optional[int] = Query(None, description="Minimum video width"),
+    max_width: Optional[int] = Query(None, description="Maximum video width"),
+    min_height: Optional[int] = Query(None, description="Minimum video height"),
+    max_height: Optional[int] = Query(None, description="Maximum video height"),
+    format_name: Optional[str] = Query(None, description="Search by format name"),
+    skip: int = Query(0, ge=0),
+    limit: int = Query(20, ge=1, le=100),
+    db: Session = Depends(get_db),
+):
+    service = VideoRegisterService(db)
+    total, videos = service.search_videos(
+        title=title,
+        artist=artist,
+        codec_name=codec_name,
+        min_width=min_width,
+        max_width=max_width,
+        min_height=min_height,
+        max_height=max_height,
+        format_name=format_name,
+        skip=skip,
+        limit=limit,
+    )
+
+    return {"total": total, "videos": videos}