debug: why frontend files are not served

server.py

@@ -767,22 +767,31 @@ def _serialize_analysis(analysis):
 
 _FRONTEND_DIR = BASE_DIR / "frontend" / "dist"
 
-if _FRONTEND_DIR.is_dir():
-    from starlette.exceptions import HTTPException as _StarletteHTTPException
-
-    class _SPAStaticFiles(StaticFiles):
-        """StaticFiles with SPA fallback: unknown paths serve index.html."""
+@app.get("/api/debug/frontend")
+async def debug_frontend_files():
+    """List all files in the frontend dist directory (for debugging deploys)."""
+    if not _FRONTEND_DIR.is_dir():
+        return {"exists": False, "path": str(_FRONTEND_DIR)}
+    files = []
+    for root, _dirs, filenames in os.walk(str(_FRONTEND_DIR)):
+        for f in filenames:
+            full = os.path.join(root, f)
+            rel = os.path.relpath(full, str(_FRONTEND_DIR))
+            files.append({"path": rel, "size": os.path.getsize(full)})
+    return {"exists": True, "path": str(_FRONTEND_DIR), "files": files}
 
-        async def get_response(self, path, scope):
-            try:
-                return await super().get_response(path, scope)
-            except _StarletteHTTPException as e:
-                if e.status_code == 404:
-                    return await super().get_response(".", scope)
-                raise
 
-    app.mount("/", _SPAStaticFiles(directory=str(_FRONTEND_DIR), html=True), name="frontend")
-    logger.info("Mounted frontend from %s", _FRONTEND_DIR)
+if _FRONTEND_DIR.is_dir():
+    @app.get("/{full_path:path}")
+    async def serve_frontend(full_path: str):
+        """Serve the React SPA — static files or index.html fallback."""
+        if full_path:
+            file_path = (_FRONTEND_DIR / full_path).resolve()
+            if file_path.is_file() and file_path.is_relative_to(_FRONTEND_DIR):
+                return FileResponse(file_path)
+        return FileResponse(_FRONTEND_DIR / "index.html")
+
+    logger.info("Frontend serving enabled from %s", _FRONTEND_DIR)
 
 
 if __name__ == "__main__":