diff --git a/main.py b/main.py
index 99cb57e..f2f53fa 100644
--- a/main.py
+++ b/main.py
@@ -55,16 +55,8 @@ async def health():
     return HealthCheck(status="ok", tools=_tool_status)
 
 
-# Serve built frontend static files (must be after all /api routes)
+# Serve built frontend static files — mounted last so /api routes take priority.
 STATIC_DIR = Path(__file__).parent / "static"
 
 if STATIC_DIR.exists():
-    app.mount("/assets", StaticFiles(directory=STATIC_DIR / "assets"), name="assets")
-
-    @app.get("/{full_path:path}")
-    async def serve_spa(full_path: str):
-        """Catch-all: serve index.html for SPA routing."""
-        file_path = STATIC_DIR / full_path
-        if file_path.is_file():
-            return FileResponse(file_path)
-        return FileResponse(STATIC_DIR / "index.html")
+    app.mount("/", StaticFiles(directory=STATIC_DIR, html=True), name="static")