feat(account): 账号登录密码支持查看明文——新增GET /accounts/{id}/password解密接口+前端🔑查看弹窗(8s自动关闭/一键复制)

app/routers/accounts.py

@@ -55,6 +55,15 @@ def delete_account(account_id: int, session: Session = Depends(get_session)) ->
     return account_service.delete_account(session, account_id)
 
 
+@router.get(
+    "/{account_id}/password",
+    summary="查看账号登录密码明文（解密返回）",
+    dependencies=[Depends(require_api_key)],
+)
+def reveal_password(account_id: int, session: Session = Depends(get_session)) -> dict:
+    return account_service.reveal_password(session, account_id)
+
+
 @router.post(
     "/{account_id}/test",
     summary="测试账号凭证有效性（按账号所属平台的 SDK）",