feat: surgery pipeline API, video inference, voice confirm, and tests

- Add FastAPI routes for surgery start/end, results, pending confirmation (WAV upload), and health checks.
- Implement RTSP/Hikvision capture, consumable classification, session manager, MinIO/Baidu voice resolution, and DB persistence.
- Add documentation (client API, video backends, staging checklist) and sample camera/RTSP config.
- Add pytest suite (API contract, session manager, voice, repositories, pipeline persistence) and httpx dev dependency.
- Replace deprecated HTTP_422_UNPROCESSABLE_ENTITY with HTTP_422_UNPROCESSABLE_CONTENT.
- Fix SurgeryPipeline DB reads to use an explicit transaction with autobegin disabled.

Made-with: Cursor

main.py

@@ -3,11 +3,11 @@ from contextlib import asynccontextmanager
 
 import uvicorn
 from fastapi import FastAPI
-from fastapi.responses import JSONResponse
 from loguru import logger
-from sqlalchemy.exc import SQLAlchemyError
 
-from app.database import check_database, engine
+from app.api import router as api_router
+from app.database import check_database, engine, init_db_schema
+from app.dependencies import camera_session_manager
 
 logger.remove()
 logger.add(
@@ -19,37 +19,32 @@ logger.add(
 @asynccontextmanager
 async def lifespan(app: FastAPI):
     await check_database()
-    logger.info("Database connection verified")
+    await init_db_schema()
+    logger.info("Database connection verified and schema ensured")
+    await camera_session_manager.start_archive_retry_loop()
     yield
+    await camera_session_manager.shutdown()
     await engine.dispose()
     logger.info("Database engine disposed")
 
 
-app = FastAPI(
-    title="Operation Room Monitor",
-    lifespan=lifespan,
-)
+def create_app() -> FastAPI:
+    application = FastAPI(
+        title="Operation Room Monitor",
+        lifespan=lifespan,
+    )
+    application.include_router(api_router)
+    return application
 
 
-@app.get("/health")
-async def health():
-    logger.debug("Health check")
-    try:
-        await check_database()
-    except SQLAlchemyError as exc:
-        logger.warning("Health check: database unavailable: {}", exc)
-        return JSONResponse(
-            status_code=503,
-            content={"status": "degraded", "database": "unavailable"},
-        )
-    return {"status": "ok", "database": "connected"}
+app = create_app()
 
 
 def main() -> None:
     uvicorn.run(
         "main:app",
         host="0.0.0.0",
-        port=8000,
+        port=38080,
         reload=True,
     )