fix: update file path for landing page in root endpoint

server/app.py

@@ -115,7 +115,7 @@ def root(request: Request):
     Landing page with human-readable description and API summary. Also serves as a health check.
     """
     BASE_DIR = Path(__file__).resolve().parent
-    return FileResponse(BASE_DIR / "server/index.html", media_type="text/html", status_code=200)
+    return FileResponse(BASE_DIR / "index.html", media_type="text/html", status_code=200)
 
 @app.get("/api")
 def api_root():