实现模板解析与模板管理基础链路

backend/main.py

@@ -1,7 +1,8 @@
 import uvicorn
 from contextlib import asynccontextmanager
-from fastapi import FastAPI
+from fastapi import FastAPI, HTTPException, Request
 from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import JSONResponse
 from database import init_db, engine
 from config import settings
 from routers import templates, models, generate, export
@@ -32,14 +33,24 @@ app.include_router(generate.router, prefix="/api/v1/generate", tags=["生成管
 app.include_router(export.router, prefix="/api/v1/export", tags=["导出管理"])
 
 
+@app.exception_handler(HTTPException)
+async def http_exception_handler(_: Request, exc: HTTPException):
+    return JSONResponse(status_code=exc.status_code, content={"code": -1, "message": exc.detail})
+
+
+@app.exception_handler(Exception)
+async def unhandled_exception_handler(_: Request, exc: Exception):
+    return JSONResponse(status_code=500, content={"code": -1, "message": str(exc) or "服务器内部错误"})
+
+
 @app.get("/")
 async def root():
-    return {"message": "AI 文档模板生成系统 API", "version": settings.APP_VERSION}
+    return {"code": 0, "data": {"name": settings.APP_NAME, "version": settings.APP_VERSION}, "message": "ok"}
 
 
 @app.get("/health")
 async def health():
-    return {"status": "ok"}
+    return {"code": 0, "data": {"status": "ok"}, "message": "ok"}
 
 
 if __name__ == "__main__":