feat: 审批流程模块 (T审批A审批)

- 新增 backend/app/api/approval.py 审批API
- 前端H5支持发起审批、审批操作
- 添加审批卡片弹窗组件
- 路由注册审批模块

backend/app/api/router.py

@@ -24,6 +24,7 @@ from app.api.upload import router as upload_router
 from app.api.admin import router as admin_router
 from app.api.portal import router as portal_router
 from app.api.admin_roles import router as admin_roles_router
+from app.api.approval import router as approval_router
 
 # 创建 API 路由器
 # 所有子路由都会挂载到这个路由器上
@@ -155,3 +156,11 @@ api_router.include_router(portal_router, tags=["统一入口"])
 # POST   /api/admin/roles/mapping-rules       — 创建映射规则
 # DELETE /api/admin/roles/mapping-rules/{id}  — 删除映射规则
 api_router.include_router(admin_roles_router, tags=["角色管理"])
+
+# 审批流程 API
+# GET  /api/approval/templates           — 获取审批模板列表
+# GET  /api/approval/templates/{id}    — 获取审批模板详情
+# POST /api/approval/jump              — 生成跳转审批链接
+# POST /api/approval/submit            — API提交审批
+# GET  /api/approval/keywords         — 获取审批关键词
+api_router.include_router(approval_router, tags=["审批流程"])