Initial Claude implementation

app/main.py

@@ -0,0 +1,55 @@
+from contextlib import asynccontextmanager
+from pathlib import Path
+
+from fastapi import FastAPI, Request
+from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import RedirectResponse
+from fastapi.staticfiles import StaticFiles
+
+from app.api.router import api_router
+from app.core.config import settings
+from app.core.database import init_db
+from app.deps import NotAuthenticated
+from app.web.admin import router as admin_router
+from app.web.pages import router as pages_router
+
+STATIC_DIR = Path(__file__).resolve().parent / "static"
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    # Dev/SQLite convenience. Use Alembic migrations in production.
+    if settings.auto_create_tables:
+        await init_db()
+    yield
+
+
+def create_app() -> FastAPI:
+    app = FastAPI(title=settings.app_name, debug=settings.debug, lifespan=lifespan)
+
+    app.add_middleware(
+        CORSMiddleware,
+        allow_origins=settings.cors_origins,
+        allow_credentials=True,
+        allow_methods=["*"],
+        allow_headers=["*"],
+    )
+
+    app.mount("/static", StaticFiles(directory=str(STATIC_DIR)), name="static")
+
+    app.include_router(api_router, prefix="/api")
+    app.include_router(pages_router)
+    app.include_router(admin_router)
+
+    @app.exception_handler(NotAuthenticated)
+    async def _redirect_to_login(request: Request, exc: NotAuthenticated):
+        return RedirectResponse(url="/login", status_code=302)
+
+    @app.get("/healthz", tags=["health"])
+    async def healthz():
+        return {"status": "ok"}
+
+    return app
+
+
+app = create_app()