Add web manifest route

server/app.py

@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import uvicorn
+from fastapi.responses import JSONResponse
 from openenv.core import create_app
 
 try:
@@ -28,6 +29,21 @@ app = create_app(
 )
 
 
+@app.get("/manifest.json", include_in_schema=False)
+def manifest() -> JSONResponse:
+    return JSONResponse(
+        {
+            "name": "Engineer Manager",
+            "short_name": "Engineer Manager",
+            "start_url": "/web/",
+            "display": "standalone",
+            "background_color": "#0b1224",
+            "theme_color": "#0b1224",
+            "icons": [],
+        }
+    )
+
+
 def run(host: str = "0.0.0.0", port: int = 8000) -> None:
     """Run the OpenEnv HTTP server."""
     uvicorn.run(app, host=host, port=port)