fix backend

backend/Dockerfile

@@ -55,6 +55,9 @@ COPY --from=builder /app/dist ./dist
 # Copy database migrations (needed for runtime)
 COPY --from=builder /app/src/database/migrations ./dist/database/migrations
 
+# Create logs directory
+RUN mkdir -p /app/logs
+
 # Change ownership to non-root user
 RUN chown -R nodejs:nodejs /app