add custom game data overrides

Dockerfile

@@ -58,6 +58,14 @@ COPY --chown=node:node docker/attribution/de.json /app/languages/de/attribution.
 COPY docker/patch-attribution.js /tmp/patch-attribution.js
 RUN node /tmp/patch-attribution.js /app/htmls/contents/account_help.html
 
+# Local patch: custom game values and elements (docker/patch-custom-game.js).
+# Hooks the loader into main.js and the game server, makes the Lone Wolf rates
+# data-driven, and merges phrase overrides into the language catalogs. The
+# loader itself is copied to /app/docker/ in the runtime stage; the custom file
+# is mounted at runtime from ./files/custom.
+COPY docker/patch-custom-game.js /tmp/patch-custom-game.js
+RUN node /tmp/patch-custom-game.js /app
+
 
 FROM ${NODE_IMAGE} AS runtime