fix(test-round): 测试清单一批 bug 修复 + 团队月限额持久化

后端:
- accounts: 团队级月限额持久化(Team.monthly_credit_limit 三态 + PATCH/GET
  /api/auth/team/settings/,刷新不丢,PMC#12);头像上传 500→502 可读错误;
  设备下线真失效(删并重建 token,旧 token 401)
- assets: 审核类目加 model_portrait,消除三视图"无需审核"误报
- ai/projects/products: 模特已有三视图复用、产品三视图同步回商品库
  (metadata.view=three_view)、真人模特三视图回写

前端:
- 商品图删除判断改用真实图片数;团队成员弹窗禁点外部关闭
- 图片预览骨架铺满占位;平台套图左侧栏折叠改导航同款;收件箱长文换行对齐
- 团队月限额改真落库(乐观更新+失败回滚)

测试:新增 TeamSettingsTests(5 条),accounts 全套 36 tests 通过;前端 build 0 error

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

core/backend/apps/accounts/urls.py

@@ -15,6 +15,7 @@ from .views import (
     team_member_detail,
     team_member_password,
     team_members,
+    team_settings,
     update_avatar,
     validate_invite,
 )
@@ -32,6 +33,7 @@ urlpatterns = [
     path("me/sessions/", login_sessions, name="auth-sessions"),
     path("me/sessions/revoke-others/", revoke_other_sessions, name="auth-sessions-revoke-others"),
     path("me/sessions/<uuid:session_id>/revoke/", revoke_login_session, name="auth-session-revoke"),
+    path("team/settings/", team_settings, name="team-settings"),
     path("team/members/", team_members, name="team-members"),
     path("team/members/<uuid:member_id>/", team_member_detail, name="team-member-detail"),
     path("team/members/<uuid:member_id>/password/", team_member_password, name="team-member-password"),