feat: collaboration service

backend-services/collab-backend-service/Dockerfile

@@ -0,0 +1,15 @@
+# Use Node for build & serve
+FROM node:22-alpine
+WORKDIR /app
+
+# Install deps
+COPY package*.json .
+RUN npm install --frozen-lockfile
+
+# Copy source
+COPY . .
+
+# Expose port
+EXPOSE 5276
+
+CMD ["node", "src/server.js"]