feat: layer sync-server + startup override on top of base image

Dockerfile

@@ -1,4 +1,18 @@
-# Vibn IDE — pull the custom-compiled image built by Cloud Build
-# Cloud Build compiles all TypeScript (Gitea/Coolify tools, Code OS agent)
-# and pushes to Artifact Registry. Coolify just pulls that image.
+# Vibn IDE — pull the custom-compiled image and layer in the sync server
 FROM northamerica-northeast1-docker.pkg.dev/master-ai-484822/vibn-ide/theia:latest
+
+USER root
+
+# Add sync-server for agent runner git-pull trigger
+COPY sync-server.js /sync-server.js
+RUN chmod 755 /sync-server.js
+
+# Override startup script to launch sync server alongside Theia
+COPY startup.sh /startup.sh
+RUN chmod +x /startup.sh
+
+EXPOSE 3000 3001
+
+USER theia
+
+ENTRYPOINT ["/startup.sh"]