fixed bugs

app/main.py

@@ -1,3 +1,4 @@
+from contextlib import asynccontextmanager
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.responses import JSONResponse
@@ -13,13 +14,27 @@ logging.basicConfig(
 )
 logger = logging.getLogger(__name__)
 
-# ── App ────────────────────────────────────────────────────────────────────────
+
+# BUG-13 FIX: Replace deprecated @app.on_event("startup") with lifespan
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    # Startup
+    logger.info("Contexta API starting up...")
+    logger.info(f"Environment: {settings.app_env}")
+    logger.info(f"Allowed origins: {settings.allowed_origins_list}")
+    yield
+    # Shutdown
+    logger.info("Contexta API shutting down...")
+
+
+# ── App ──────────────────────────────────────────────────────────────────────────
 app = FastAPI(
     title="Contexta API",
     description="AI Chatbot Platform - Create, deploy and share custom AI chatbots powered by your data",
     version="1.0.0",
     docs_url="/docs",
     redoc_url="/redoc",
+    lifespan=lifespan,
 )
 
 # ── Middleware ─────────────────────────────────────────────────────────────────
@@ -55,20 +70,13 @@ async def health():
     return {"status": "healthy", "environment": settings.app_env}
 
 
-# ── Sentry ────────────────────────────────────────────────────────────────────
+# ── Sentry ─────────────────────────────────────────────────────────────────────
 if settings.sentry_dsn:
     import sentry_sdk
     sentry_sdk.init(dsn=settings.sentry_dsn, traces_sample_rate=0.1)
     logger.info("Sentry initialized")
 
-# ── Startup ───────────────────────────────────────────────────────────────────
-@app.on_event("startup")
-async def startup_event():
-    logger.info("Contexta API starting up...")
-    logger.info(f"Environment: {settings.app_env}")
-    logger.info(f"Allowed origins: {settings.allowed_origins_list}")
-
 
 if __name__ == "__main__":
     import uvicorn
-    uvicorn.run("app.main:app", host="0.0.0.0", port=8000, reload=True)
+    uvicorn.run("app.main:app", host="0.0.0.0", port=8000, reload=True)