add project structure

app/main.py

@@ -0,0 +1,37 @@
+from contextlib import asynccontextmanager
+
+from fastapi import FastAPI, Request
+from fastapi.responses import RedirectResponse
+from fastapi.staticfiles import StaticFiles
+from fastapi.templating import Jinja2Templates
+
+from app.db import init_db
+
+templates = Jinja2Templates(directory="app/templates")
+
+
+def create_app() -> FastAPI:
+    @asynccontextmanager
+    async def lifespan(app: FastAPI):
+        init_db()
+        yield
+
+    app = FastAPI(title="Moving Helper", lifespan=lifespan)
+    app.mount("/static", StaticFiles(directory="app/static"), name="static")
+
+    @app.get("/", include_in_schema=False)
+    def root() -> RedirectResponse:
+        return RedirectResponse(url="/boxes", status_code=302)
+
+    @app.get("/boxes")
+    def boxes_page(request: Request):
+        return templates.TemplateResponse(
+            request=request,
+            name="boxes.html",
+            context={"page_title": "Boxes"},
+        )
+
+    return app
+
+
+app = create_app()