Update Dockerfile

write-server/Dockerfile

@@ -44,6 +44,9 @@ COPY --from=builder /app/public ./public
 COPY --from=builder /app/.next/standalone ./
 COPY --from=builder /app/.next/static ./.next/static
 
+# Copy production node_modules as fallback (standalone may miss some deps)
+COPY --from=deps /app/node_modules ./node_modules
+
 # Copy package.json for version info
 COPY --from=builder /app/package.json ./