feat(task-buttons): 跳转按钮可追加登录态 token+username + token 登录离线测试映射

rwfx/3qfx/xdfx 任务工作区的可配置跳转按钮(按钮管理)新增「追加登录态」开关:
url 类型按钮可在外链后拼 ?token=<token1>&username=<登录名>(参数名可配,默认
token/username),供跳转目标外部系统识别当前登录用户。

- 仅 token 登录(login/token)生效: token1 = ?authToken=,username = 后端用
  token 调 getTokenInfo 解析出的原始登录名(非邮箱前缀/非解 JWT)。二者登录时
  经 persistLoginCredentials 存入 login.token1/login.username(scoped-storage
  自动隔离嵌入/独立会话);非 token 登录读不到 token1 则跳过追加。
- 后端 UsernameLoginResponse 回传 username(原始名,规避邮箱归一化有损);
  token_login 加 mock_tokens 离线测试映射(123ewq->admin),命中即跳过外网
  getTokenInfo,便于本地全链路联调。
- task_buttons 加列 append_auth/auth_token_param/auth_name_param
  (migration 20260625_01 + 幂等 SQL)。

Tests: test_task_buttons.py, test_auth_login_modes.py(mock token/username 回传)。

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

offline-backend-20260512/backend/scripts/sql/column_additions_mysql.sql

@@ -162,6 +162,15 @@ PREPARE stmt FROM @idx_ddl;
 EXECUTE stmt;
 DEALLOCATE PREPARE stmt;
 
+-- ---- task_buttons ------------------------------------------------------------
+-- 任务工作区跳转按钮的「追加登录态」选项,对应 migration 20260625_01。url 按钮可在外链
+-- 后追加 token(token 登录的上游 token)+ username(登录用户名),供外部系统识别当前用户。
+-- ORM: TaskButtonRow.append_auth = Boolean NOT NULL default False;
+--      auth_token_param / auth_name_param = String(64), nullable, 读时归一化为 token/username。
+CALL _add_column_if_missing('task_buttons', 'append_auth', 'TINYINT(1) NOT NULL DEFAULT 0');
+CALL _add_column_if_missing('task_buttons', 'auth_token_param', "VARCHAR(64) NULL DEFAULT 'token'");
+CALL _add_column_if_missing('task_buttons', 'auth_name_param', "VARCHAR(64) NULL DEFAULT 'username'");
+
 -- ---- 执行后自检:确认本批次涉及的列都已存在 ---------------------------------
 SELECT table_name, column_name
   FROM information_schema.columns
@@ -169,5 +178,6 @@ SELECT table_name, column_name
    AND ((table_name = 'skills' AND column_name IN ('name_zh', 'detail', 'square_id', 'always_on'))
         OR (table_name = 'agents' AND column_name IN ('square_id'))
         OR (table_name = 'roundtable_drafts' AND column_name = 'task_id')
-        OR (table_name = 'roundtable_jobs' AND column_name = 'task_id'))
+        OR (table_name = 'roundtable_jobs' AND column_name = 'task_id')
+        OR (table_name = 'task_buttons' AND column_name IN ('append_auth', 'auth_token_param', 'auth_name_param')))
  ORDER BY table_name, column_name;