fix source path (no src/ prefix)

packages/nextcloud-mcp-server/package.nix

@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
     mkdir -p $out/bin $out/lib/${pname}
 
     # Copy the server code from source
-    cp -r src/nextcloud_mcp_server $out/lib/${pname}/
+    cp -r nextcloud_mcp_server $out/lib/${pname}/
 
     # The hermes-agent service already has a working venv with all deps
     # Use that Python interpreter (it has PYTHONPATH set by the service env)