GitLab

- 创建 Icon.vue 统一管理 SVG 图标（20+ 常用图标）
- 修复 AccountActionMenu 中被错误替换为 emoji 的图标
- 修复 ProfileView 和 GroupsView 中的 emoji 图标
- 图标支持 size/strokeWidth 属性，便于复用

- AccountTableFilters: 添加 Antigravity 平台选项、类型筛选器、inactive 状态
- AccountActionMenu: 恢复重置状态和清除限速按钮，添加 dark mode 样式
- AccountsView: 修正 handleClearRateLimit 调用正确的 API

- Split UsersView.vue into UserCreateModal, UserEditModal, UserApiKeysModal, etc.
- Split UsageView.vue into UsageStatsCards, UsageFilters, UsageTable, etc.
- Split DashboardView.vue into UserDashboardStats, UserDashboardCharts, etc.
- Split AccountsView.vue into AccountTableActions, AccountTableFilters, etc.
- Standardized TypeScript types across new components to resolve implicit 'any' and 'never[]' errors.
- Improved overall frontend maintainability and code clarity.