feat(storage): implement NAS content storage with read/write capabilities

feat(docker): configure NAS content and EPUB source directories in docker-compose

feat(migrations): add tables for SourceAsset, ImportJob, ChapterContentRef, and AssetNovelMapping

feat(scripts): create backfill script for populating ChapterContentRef from MongoDB chapters

app/auth.py

@@ -121,7 +121,10 @@ async def resolve_current_user(db: AsyncSession, request: Request) -> dict[str,
     return await _get_user_from_session_cookie(db, request)
 
 
-async def require_current_user(db: AsyncSession, request: Request) -> dict[str, Any]:
+async def require_current_user(
+    request: Request,
+    db: AsyncSession = Depends(get_db_session),
+) -> dict[str, Any]:
     user = await resolve_current_user(db, request)
     if not user:
         raise HTTPException(status_code=401, detail="Unauthorized")