docs: generate each subsystem's cordis surface into its own page; delete the flat catalogs

Rebuild of the region machinery (PR3) on the post-#904 Typert projection:
renderPageRegion/renderInheritedPage live in dsh-typert-generator beside the
projection; scripts/gen-cordis-catalog.ts owns the curated SERVICE_PAGE /
EVENT_SCOPE_PAGE / SERVICE_WALK_EXEMPTIONS / LINK_MAP partition (fail-loud in
both directions, with the independent Context-merge scan backstopping the
projection's blind spot), spliceRegion, and the guarded pair auto-record.
docs/cordis-catalog/ is deleted: the flat events/services catalogs dissolve
into per-page regions and docs/cordis-catalog/core moves to docs/cordis-api/
with the inherited tier as its own generated page. The partition absorbs the
post-regrouping surface: ctx.typert → invariants.md, ctx.directoryPicker →
workspace.md, skills/* events → skills.md, and the four launcher-provided tui
accessor values join the named exemptions.

docs/subsystems/invariants.zh.md

@@ -57,3 +57,32 @@ interface InvariantInstaller {
 ## 配套插件契约
 
 每个工作区包都拥有一个 `./invariant` 配套插件（[包契约](../../packages/AGENTS.md)）；发布与注册是穷尽式的，但刻意不合成断言。只有当包对某个可观察事件或可变数据拥有所有权关系时，配套插件才安装检查；否则它导出一个空安装器，其起始注释以 `No runtime invariant:` 开头，针对该包具体解释为什么没有可检查项。`pnpm run verify-package-invariants` 机械地拒绝「生成文件」标记、无解释的空安装器、遗漏或忽略报告器的非空安装器、错误的注册名称，以及不完整的导出、发布、依赖或打包接线（[机械规则 Agent Note](../../.agents/notes/implemented/architecture/2026-07-19-package-invariant-runtime-contracts.md)）。可执行配套插件的目录与标准组合方式见[包 README](../../packages/support/invariants/README.md)。
+
+<!-- BEGIN GENERATED cordis-surface (gen-cordis-catalog.ts) — do not edit between markers -->
+
+<a id="cordis-surface"></a>
+
+## Cordis surface
+
+Generated from source by `scripts/gen-cordis-catalog.ts` (verified fresh by `pnpm run verify-cordis-catalog` in doc-sync; regenerate with `pnpm run gen-cordis-catalog`) — this section is byte-identical in both language sides of the page. Signature blocks use a `ts cordis-catalog` fence and keep the original source JSDoc; dispatch modes are defined in the [primer](../cordis-primer.md#dispatch-modes), and the framework-inherited `ctx` surface lives in [cordis-api/inherited.md](../cordis-api/inherited.md).
+
+<a id="ctxinvariants--invariantservice"></a>
+
+### `ctx.invariants` — `InvariantService`
+
+Package-owned invariant registry with global and regex-based selection.
+
+```ts cordis-catalog
+/**
+ * Register one package's invariant installer. The package name is reserved
+ * even when filtering disables its checks. Enabled installers run in a child
+ * fiber; failure disposes that fiber and releases the reservation.
+ * @param packageName - full npm package name that owns the contribution.
+ * @param installer - listener or startup-check installer for the child context.
+ * @returns an effect-scoped disposer for the registration.
+ */
+register(packageName: string, installer: InvariantInstaller): () => void
+```
+
+Source: [`packages/support/invariants/src/index.ts:94`](../../packages/support/invariants/src/index.ts)
+<!-- END GENERATED cordis-surface -->