Update main.py

main.py

@@ -1,23 +1,31 @@
-from fastapi import FastAPI
-from fastapi.middleware.cors import CORSMiddleware
-
-from app.api import api_router
-from app.config import get_settings
-
-settings = get_settings()
-
-app = FastAPI(
-    title="QuantMind Backend",
-    version="1.0.0",
-    description="LSTM-based stock prediction API for the QuantMind dashboard.",
-)
-
-app.add_middleware(
-    CORSMiddleware,
-    allow_origins=["*"],  # tighten later
-    allow_credentials=True,
-    allow_methods=["*"],
-    allow_headers=["*"],
-)
-
-app.include_router(api_router)
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+from app.api import api_router
+from app.config import get_settings
+
+settings = get_settings()
+
+app = FastAPI(
+    title=settings.app_name,
+    version="1.0.0",
+    description="LSTM-based stock prediction API for the QuantMind dashboard.",
+)
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=settings.cors_origins,
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+
+@app.on_event("startup")
+def startup_event():
+    # Fail fast if critical config is missing
+    settings.validate()
+    print("[Startup] QuantMind backend initialized successfully")
+
+
+app.include_router(api_router)