feat: 二期审批引擎扩展与会签/明细/回填/附件分类共享层（#46）

- ApprovalDocumentType SPI + 注册表：新增单据不再改引擎
- ApprovalApproverResolver：会签组、orgLeaderByCode/orgDeputyByCode、租户岗位解析器
- 会签：任务带 group_key/group_name/group_seq，一人多组一次通过，只取消同组待办
- 回填：节点 writableFields、BACKFILL 动作、approval_field_change 留痕
- 附件：新增 VOUCHER 分类并按单据类型校验必传
- 详情：document.fields/lines/lineColumns/groupProgress + permissions.writableFields
- 列表/导出：title/search_text 落库、flowCode 筛选、明细行数/合计金额/会签进度列、明细导出
- sql/05-approval_phase2.sql（可重复执行）

sql/02-approval_menu.sql

@@ -75,3 +75,22 @@ WHERE m.tenant_id = 10150
   AND NOT EXISTS (
     SELECT 1 FROM sys_role_menu rm WHERE rm.role_id = 586 AND rm.menu_id = m.menu_id AND rm.tenant_id = 10150
   );
+
+SET @instanceMenu = (SELECT menu_id FROM sys_menu WHERE tenant_id = 10150 AND path = '/approval/instance' AND menu_type = 0 AND deleted = 0 ORDER BY menu_id LIMIT 1);
+
+-- 价格表查看（ADR 0008）：受众全体员工，独立权限点，配 /approval/price 只读页
+SET @parent = (SELECT menu_id FROM sys_menu WHERE tenant_id = 10150 AND path = '/approval' AND menu_type = 0 AND deleted = 0 ORDER BY menu_id LIMIT 1);
+
+INSERT INTO sys_menu (parent_id, title, path, component, sort_number, authority, icon, menu_type, tenant_id, deleted)
+SELECT @parent, '设施价格表', '/approval/price', '/approval/price', 3, 'approval:price:view', '', 0, 10150, 0
+FROM DUAL
+WHERE NOT EXISTS (
+  SELECT 1 FROM sys_menu WHERE tenant_id = 10150 AND path = '/approval/price' AND menu_type = 0 AND deleted = 0
+);
+
+INSERT INTO sys_menu (parent_id, title, path, component, sort_number, authority, icon, menu_type, tenant_id, deleted)
+SELECT @instanceMenu, '价格表查看', '', '', 6, 'approval:price:view', '', 1, 10150, 0
+FROM DUAL
+WHERE NOT EXISTS (
+  SELECT 1 FROM sys_menu WHERE tenant_id = 10150 AND authority = 'approval:price:view' AND menu_type = 1 AND deleted = 0
+);