feat: recording upload and management API with tests

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/app/main.py

@@ -3,6 +3,7 @@ from contextlib import asynccontextmanager
 from fastapi import FastAPI
 
 from app.api.auth import router as auth_router
+from app.api.recordings import router as recordings_router
 
 
 @asynccontextmanager
@@ -12,6 +13,7 @@ async def lifespan(app: FastAPI):
 
 app = FastAPI(title="Meeting Protocol Service", lifespan=lifespan)
 app.include_router(auth_router)
+app.include_router(recordings_router)
 
 
 @app.get("/api/health")