feat(extapi): 新增外部接口清单注解扫描与展示导出

新增 @ExternalApi/@ExternalCall 方法级注解，启动时扫描生成内存注册表。
提供 /sys/extApi/list 展示、exportXls(AutoPoi) 与 exportMarkdown 导出；
给 TaskApiController.countTaskforporter 打 @ExternalApi 示范并补菜单 SQL。

sql-changelog/dml/20260811_外部接口清单菜单.sql

@@ -0,0 +1,30 @@
+-- ============================================
+-- 外部接口清单 菜单 + 角色授权（幂等）
+-- 页面: src/views/super/apiList/index.vue
+-- 后端: /sys/extApi/* (ExternalApiController)
+-- ============================================
+
+SET @menu_id = REPLACE(UUID(), '-', '');
+
+INSERT INTO sys_permission
+  (id, parent_id, name, url, component, is_route, component_name, redirect,
+   menu_type, perms, perms_type, sort_no, always_show, icon, is_leaf,
+   keep_alive, hidden, hide_tab, description, create_by, create_time,
+   update_by, update_time, del_flag, rule_flag, status, internal_or_external)
+SELECT
+  @menu_id, '', '外部接口清单', '/super/apiList', 'super/apiList/index', 1, NULL, NULL,
+  1, NULL, 1, 100.00, 0, NULL, 1,
+  0, 0, 0, '应用系统间接口清单（对外提供/对外调用），注解自动采集', 'admin', NOW(),
+  'admin', NOW(), 0, 0, 1, 0
+FROM DUAL
+WHERE NOT EXISTS (SELECT 1 FROM sys_permission WHERE name = '外部接口清单' AND url = '/super/apiList');
+
+-- 授权给 admin 角色
+INSERT INTO sys_role_permission (id, role_id, permission_id, data_rule_ids)
+SELECT REPLACE(UUID(), '-', ''), 'f6817f48af4fb3af11b9e8bf182f618b', @menu_id, NULL
+FROM DUAL
+WHERE EXISTS (SELECT 1 FROM sys_permission WHERE id = @menu_id)
+  AND NOT EXISTS (
+    SELECT 1 FROM sys_role_permission r
+    WHERE r.role_id = 'f6817f48af4fb3af11b9e8bf182f618b' AND r.permission_id = @menu_id
+  );