fix: fileStorage path issues between local and staging environments

- Store relative paths in database instead of absolute paths
- Reconstruct absolute paths at runtime using UPLOAD_DIR env var
- Add VOLUME for /app/uploads in Dockerfile for persistent storage
- Create uploads directory with proper permissions in Docker
- Add error handling for missing UPLOAD_DIR in findUniq.ts
- Simplify GitHub workflow memory in QWEN.md (manual handling)

This fixes the 500 errors on staging for file create/delete operations
caused by environment-specific absolute paths stored in database.

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

Dockerfile

@@ -61,8 +61,14 @@ COPY --from=builder --chown=nextjs:nodejs /app/prisma ./prisma
 COPY --from=builder --chown=nextjs:nodejs /app/next.config.* ./
 COPY --chmod=755 docker-entrypoint.sh ./docker-entrypoint.sh
 
+# Create uploads directory with proper permissions
+RUN mkdir -p /app/uploads && chown nextjs:nodejs /app/uploads
+
 USER nextjs
 
+# Persistent storage for uploaded files
+VOLUME ["/app/uploads"]
+
 EXPOSE 3000
 
 CMD ["/app/docker-entrypoint.sh"]