working 3 tier approach

backend/app/main.py

@@ -0,0 +1,38 @@
+from contextlib import asynccontextmanager
+
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+from app.config import settings
+from app.database import engine
+from app.models import Base
+from app.api import programs, events, tiers
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    # Create tables on startup (seed.py handles data seeding)
+    async with engine.begin() as conn:
+        await conn.run_sync(Base.metadata.create_all)
+    yield
+
+
+app = FastAPI(
+    title="KMountain Flower Radio API",
+    description="Backend API for the KMountain Flower Radio Station website.",
+    version="1.0.0",
+    lifespan=lifespan,
+)
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=settings.CORS_ORIGINS,
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# Register routers
+app.include_router(programs.router, prefix="/api/programs", tags=["programs"])
+app.include_router(events.router, prefix="/api/events", tags=["events"])
+app.include_router(tiers.router, prefix="/api/tiers", tags=["tiers"])