feat: simplify account create/edit and add row copy

Data-management add/edit now use short forms with enums; copy clones a platform account into a new empty profile.

Co-authored-by: Cursor <cursoragent@cursor.com>

references/INTEGRATION.md

@@ -37,6 +37,8 @@
 | 导入加密凭据 | `account import-credentials [--replace-all]` | **通常为空**（计数在 stderr） |
 | 初始化 master key | `account init-master-key [--print\|--from-env\|--rotate]` | **单行 JSON** |
 | 新增网页账号 | `account add-web ...` | `{"success": true, "data": {...}}` |
+| 复制网页账号 | `account copy <id>` | `{"success": true, "message": "已复制为「…」", "data": {...}}` |
+| 编辑网页账号 | `account update --id <id> ...` | `{"success": true, "message": "已保存", "data": {...}}` |
 | 新增凭据 | `account add-secret ...` | `{"success": true, "data": {...}}` |
 | 获取 API Key | `credential pick ... [--reveal]` | `{"success": true, ...}` |
 | 兼容入口 | `get <id>` / `list-json <p>` / `pick-web <p>` | 同上对应新式命令 |