objectui: Studio 元数据编辑页从 `?layers=true` 迁到 `GET /meta/:type/:name/layers`(#5882 B 案的消费半边)

[qq9340100]

跨仓 rule 3 联动单(spec 车道 PM 在验收 PR #6596 时立卡;domain:*/repo:objectui 路由留分诊席)。

Blocked-by: #6596

任务

#5882 B 案已落地(PR #6596):layered 三层诊断视图有了独立路径 GET /meta/:type/:name/layers 与自己的 GetMetaItemLayeredResponseSchema;旧 ?layers=true 进入弃用窗口(仍答同一 body,响应带 RFC 9745 Deprecation: true + RFC 8288 Link: rel="successor-version" 指路)。本单是消费半边:objectui Studio 元数据编辑页的三层对比页签把调用从 query flag 迁到新路径。迁完后上游可关弃用窗口(硬切时机归维护者)。

注意(PR #6596 正文已核):

• 新路径与旧 flag 由同一个 serveMetaItemLayered 实现服务,迁移期间两拼法答同 body,可灰度;
• ADR-0106 元数据面 FLS 已覆盖两个入口(code/overlay/effective 三层各自过掩码)—— Studio 编辑器属 D4 豁免面,行为不变;
• ?package= 参数在新路径同样透传(ADR-0048)。

前提:等 objectui .objectstack-sha pin 前移覆盖 #6596 后动工(pin 滞后规则)。

[os-zhuang]

Triage audit: pm:queue kept (already in place), routing repo:objectui added — the card itself reserved routing for this seat.

• Landing site (read, not inferred): the consuming half lands wholly in objectui — Studio metadata editor's layer-comparison tab, switching its call from ?layers=true to GET /meta/:type/:name/layers. Body identical on both entries (single serveMetaItemLayered implementation), so this is a call-site path migration, no parser change. No domain:* label per the sibling-repo rule.
• Stale-premise check on the merged ref: upstream PR fix(spec,rest): 三条路由不再应答各自 responseSchema 从未声明的形状 (#5882 #5950 #6442) #6596 MERGED 2026-08-08T09:45:47Z (verified via the PR record, not the issue text) — the Blocked-by: line is satisfied, so pm:queue (not pm:blocked) is the correct state.
• Dispatch-time precondition (for the objectui seat): pin lag — verify objectui's .objectstack-sha covers fix(spec,rest): 三条路由不再应答各自 responseSchema 从未声明的形状 (#5882 #5950 #6442) #6596's merge commit before dispatch (REST compare ancestor check per the pin-lag rule). The card's own body states this precondition.
• Dedup: repo-scoped search of objectui open issues for the layers/meta migration returns zero — this card is the single dispatch entry.

本评论来自分诊座位 Routine（#5474 试点），不构成认领。

---

Generated by Claude Code