feat(mindspace): add SEO/GEO delivery, page template catalog, and admin hooks

Enable optional SEO/GEO injection and discovery routes for confirmed public pages while keeping private pages noindex. Add premium page template skills, portal catalog API, template shop UI, and Baidu push gated by memind_adm config.

Co-authored-by: Cursor <cursoragent@cursor.com>

AGENTS.md

@@ -51,6 +51,7 @@ bash scripts/check-release-ready.sh
 | Page Data 数据集注册、绑定与交付验收 | [docs/regression-guards/page-data-delivery-contract.md](docs/regression-guards/page-data-delivery-contract.md) |
 | H5 SSE 断线续播、Portal/Goose 游标映射与 Finish 终态恢复 | [docs/regression-guards/h5-session-stream-replay.md](docs/regression-guards/h5-session-stream-replay.md) |
 | Memory V2 候选表初始化与生命周期灰度作用域 | [docs/regression-guards/memory-v2-candidate-and-lifecycle.md](docs/regression-guards/memory-v2-candidate-and-lifecycle.md) |
+| MindSpace SEO/GEO 收录策略与私有页 noindex | [docs/regression-guards/mindspace-seo-geo.md](docs/regression-guards/mindspace-seo-geo.md) |
 
 索引：[docs/regression-guards/README.md](docs/regression-guards/README.md)
 
@@ -61,6 +62,8 @@ npm run verify:mindspace-publish-guards
 npm run verify:mindspace-publish-guards:full
 npm run verify:mindspace-page-sync-guards
 npm run verify:h5-session-patches
+npm run verify:seo-geo
+npm run verify:seo-discovery
 ```
 
 发版脚本（`scripts/release-portal-runtime-prod.sh`）当前在不跳过测试时会执行相关 verify；生产 `103` 发布禁止使用 `--skip-tests`，并且仍须通过完整生产发布守门员。
@@ -75,6 +78,7 @@ npm run verify:h5-session-patches
 - `mindspace-pages.mjs` - storage 缺失时 HTML 页回退读 workspace `relative_path`
 - `mindspace-page-sync-service.mjs` + `server.mjs` - remote 模式也必须 sync public HTML
 - `session-stream.mjs` + `session-stream-store.mjs` + `tkmind-proxy.mjs` - Portal replay ID 不得直接作为 Goose `Last-Event-ID`
+- `mindspace-index-policy.mjs` + `mindspace-seo-geo-delivery.mjs` - 私有页必须 noindex；仅 confirmed public 可收录
 
 代码内搜索 `REGRESSION GUARD` 可定位所有内联说明。