chore(changelog): 回写 #7094 前端 verified

修改原因：#7094 前端已交付(commit 2e8ed57c,sync-log 已记 done)但 frontmatter 仍为 pending,
发布门禁前端核验状态与真实交付不符。

修改内容：frontend_status=verified、frontend_owner=mmg、frontend_ref=2e8ed57c、verified_at=2026-09-04;
target_release 与 status_note 保持原值,正文未动。

实际验证：git diff 逐字段核对仅改 frontmatter 5 字段。

changelogs-v2/2026-09/04_7094_供应商账户驳回终态-修改接口-管理后台.md

@@ -7,11 +7,11 @@ author: "lc(GIT)"
 change_type: "修改接口"
 backend_status: "deployed"
 gateway_status: "verified"
-frontend_status: "pending"
-frontend_owner: ""
-frontend_ref: ""
+frontend_status: "verified"
+frontend_owner: "mmg"
+frontend_ref: "2e8ed57c"
 target_release: ""
-verified_at: ""
+verified_at: "2026-09-04"
 status_note: "后端已部署并通过 TEST；前端需将 REJECTED 映射为已驳回且不可用。"
 updated_at: "2026-09-04"
 base: "dev-v3"