chore(changelog): 回填 #5599/#5567/#5633 部署实测状态(未部署即推送整改)+5 条枚举/结构合规

- #5599/#5567/#5633(yst 8-06~8-07 推送时未部署测试服): 2026-08-10 复核确认代码已随 order-v3 8-10 部署上测试服,补验证证据章节(部署点位+DB 列+网关实测),backend_status 回填 deployed/gateway verified
- #5444、#5730-5732: backend_status released→deployed(枚举合法化,状态语义不变)
- #5784 补验证证据章节、#5788 章节结构规范化、#5797 清理 not_required 残留前端字段

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

changelogs-v2/2026-08/10_5797_车务聊天定制师端已读回执修复-修复-管理后台.md

@@ -8,10 +8,10 @@ change_type: "修复"
 backend_status: "deployed"
 gateway_status: "not_required"
 frontend_status: "not_required"
-frontend_owner: "mmg"
+frontend_owner: ""
 frontend_ref: ""
 target_release: ""
-verified_at: "2026-08-10"
+verified_at: ""
 status_note: "接口契约零变化，前端无需改动即生效（readByPeer 字段在车务会话首次真正有值）。附带新增：车务团队读后向定制师推点对点 im-chat-read 信令，SSE 角标实时化接线时可顺带消费实现气泡实时翻「已读」。测试服 16:00 后已用真实 API + Redis 信令抓包验证通过。"
 updated_at: "2026-08-10"
 base: "dev-v3"