Feature/add multilingual support

[seoeaa]

Pull Request

描述 (Description)

变更类型 (Type of Change)

• [ ] 🐛 Bug 修复 (Bug fix)
• [x] ✨ 新功能 (New feature)
• [ ] 💥 破坏性变更 (Breaking change)
• [ ] 📚 文档更新 (Documentation update)
• [ ] 🎨 代码重构 (Code refactoring)
• [ ] ⚡ 性能优化 (Performance improvement)
• [ ] 🧪 测试相关 (Test related)
• [ ] 🔧 配置变更 (Configuration change)
• [ ] 🐳 Docker 相关 (Docker related)
• [ ] 🎨 前端 UI/UX (Frontend UI/UX)

影响范围 (Scope)

• [ ] 后端 API (Backend API)
• [x] 前端界面 (Frontend UI)
• [ ] 数据库 (Database)
• [ ] 文档解析服务 (Document Reader Service)
• [ ] MCP 服务器 (MCP Server)
• [ ] Docker 配置 (Docker Configuration)
• [ ] 配置文件 (Configuration)
• [ ] 其他 (Other):

测试 (Testing)

• [ ] 单元测试 (Unit tests)
• [ ] 集成测试 (Integration tests)
• [x] 手动测试 (Manual testing)
• [ ] 前端测试 (Frontend testing)
• [ ] API 测试 (API testing)

测试步骤 (Test Steps)

检查清单 (Checklist)

• [x] 代码遵循项目的编码规范
• [x] 已进行自我代码审查
• [x] 代码变更已添加适当的注释
• [x] 相关文档已更新
• [x] 变更不会产生新的警告
• [x] 已添加测试用例证明修复有效或功能正常
• [x] 新功能和变更已更新到相关文档
• [x] 破坏性变更已在描述中明确说明

相关 Issue

Fixes #

截图/录屏 (Screenshots/Recordings)

数据库迁移 (Database Migration)

• [ ] 需要数据库迁移
• [ ] 不需要数据库迁移

配置变更 (Configuration Changes)

部署说明 (Deployment Notes)

其他信息 (Additional Information)

[begoniezhao]

Let's rearrange the order of the multilingual languages: Chinese, English, Russian, how about that?

[seoeaa]

Let's rearrange the order of the multilingual languages: Chinese, English, Russian, how about that?

OK

[begoniezhao]

Please do not delete the docker-compose.yml file.

[begoniezhao]

Please restore the docker-compose.yml file, especially the frontend image.