feat: order-export,generation,status

openspec/changes/add-order-export-scene/specs/export-task-management/spec.md

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+## ADDED Requirements
+
+### Requirement: Order Export Scene Support
+
+The system SHALL support `scene="order"` for creating export tasks from the order management list.
+
+#### Scenario: Create order export task from order management
+
+- **GIVEN** 用户在订单管理页设置了列表检索条件
+- **AND** 当前用户具备订单导出权限
+- **WHEN** 用户确认创建导出任务
+- **THEN** 系统 MUST submit `scene="order"`
+- **AND** 系统 MUST submit the current order list filter conditions as `query`
+
+### Requirement: Order Export in Export Task List
+
+The admin frontend SHALL display "订单管理" as a selectable scene option when filtering export tasks.
+
+#### Scenario: Filter export tasks by order scene
+
+- **GIVEN** 用户打开导出列表页面
+- **WHEN** 用户选择「订单管理」作为场景筛选条件
+- **THEN** 系统 MUST call `GET /api/admin/export-tasks` with `scene=order`
+
+## MODIFIED Requirements
+
+### Requirement: Reusable Export Task Creation Dialog
+
+The admin frontend already provides a reusable dialog for creating export tasks. This requirement adds the order scene to the scene name mapping.
+
+#### Scenario: Display order scene name in dialog
+
+- **GIVEN** 导出弹窗通过 `scene="order"` 打开
+- **WHEN** 弹窗渲染
+- **THEN** 弹窗 MUST display "订单管理" as the scene name