Initial Robot U site prototype

app.py

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+from __future__ import annotations
+
+from pathlib import Path
+
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import FileResponse, JSONResponse
+from fastapi.staticfiles import StaticFiles
+
+from live_prototype import build_live_prototype_payload
+from settings import get_settings
+
+BASE_DIR = Path(__file__).resolve().parent
+DIST_DIR = BASE_DIR / "frontend" / "dist"
+
+
+def create_app() -> FastAPI:
+    app = FastAPI(title="Robot U Community Prototype")
+
+    app.add_middleware(
+        CORSMiddleware,
+        allow_origins=["*"],
+        allow_methods=["*"],
+        allow_headers=["*"],
+    )
+
+    @app.get("/health")
+    async def health() -> JSONResponse:
+        return JSONResponse({"status": "ok"})
+
+    @app.get("/api/prototype")
+    async def prototype() -> JSONResponse:
+        return JSONResponse(await build_live_prototype_payload(get_settings()))
+
+    if DIST_DIR.exists():
+        assets_dir = DIST_DIR / "assets"
+        if assets_dir.exists():
+            app.mount("/assets", StaticFiles(directory=str(assets_dir)), name="assets")
+
+        @app.get("/{full_path:path}")
+        async def spa_fallback(full_path: str) -> FileResponse:
+            candidate = DIST_DIR / full_path
+            if candidate.is_file():
+                return FileResponse(str(candidate))
+
+            response = FileResponse(str(DIST_DIR / "index.html"))
+            response.headers["Cache-Control"] = "no-store, no-cache, must-revalidate"
+            response.headers["Pragma"] = "no-cache"
+            response.headers["Expires"] = "0"
+            return response
+
+    return app
+
+
+app = create_app()