Bootstrap Python rewrite skeleton

app/main.py

@@ -0,0 +1,45 @@
+from contextlib import asynccontextmanager
+from pathlib import Path
+
+from fastapi import FastAPI
+from fastapi.staticfiles import StaticFiles
+
+from app.api.routes import pages, status
+from app.config import get_settings
+
+
+def ensure_runtime_dirs() -> None:
+    settings = get_settings()
+    if settings.sqlite_path is not None:
+        settings.sqlite_path.parent.mkdir(parents=True, exist_ok=True)
+
+
+@asynccontextmanager
+async def lifespan(_: FastAPI):
+    ensure_runtime_dirs()
+    yield
+
+
+def create_app() -> FastAPI:
+    settings = get_settings()
+    app = FastAPI(
+        title=settings.app_name,
+        debug=settings.app_debug,
+        version="0.1.0",
+        lifespan=lifespan,
+        description=(
+            "Python rewrite skeleton for the home automation backend. "
+            "This stage provides only the foundation for future module migration."
+        ),
+    )
+
+    static_dir = Path(__file__).parent / "static"
+    app.mount("/static", StaticFiles(directory=static_dir), name="static")
+
+    app.include_router(status.router)
+    app.include_router(pages.router)
+    return app
+
+
+app = create_app()
+