Skip jison parser build - use pre-built tgnParser.cjs

Dockerfile

@@ -3,7 +3,7 @@ FROM node:20-slim
 # Set noninteractive installation
 ENV DEBIAN_FRONTEND=noninteractive
 
-# Build timestamp to force cache invalidation: 2026-01-12T18:35
+# Build timestamp to force cache invalidation: 2026-01-12T18:40
 
 # Install build dependencies
 RUN apt-get update && apt-get install -y \
@@ -28,8 +28,8 @@ RUN npm install --omit=dev && \
     cd ../backend && npm install && \
     cd ..
 
-# Build jison parsers (required for the game) - use global tsx directly
-RUN tsx tools/buildJisonParser.ts
+# Skip jison parser build - pre-built tgnParser.cjs is already in public/lib/
+# RUN tsx tools/buildJisonParser.ts
 
 # Build frontend (generates dist folder) - skip vue-tsc type checking, use build:prod
 RUN cd app && npm run build:prod