updated skills

plugins/document-navigator/docs/api-stack/api/api-plugin/README.md

@@ -108,7 +108,7 @@ ctx.getService("nope");  // type error — not augmented
 
 `PLUGIN_CODES` defines ten codes (`PLUGIN.NOT_FOUND`, `PLUGIN.ALREADY_REGISTERED`, `PLUGIN.INIT_FAILED`, `PLUGIN.DEP_MISSING`, `PLUGIN.CIRCULAR_DEPENDENCY`, `PLUGIN.INIT_TIMEOUT`, `PLUGIN.SHUTDOWN_FAILED`, `PLUGIN.INVALID_CONFIG`, `PLUGIN.HOOK_FAILED`, `PLUGIN.ABORTED`). Every code is raised by at least one production call site — the spec-conformance test pins this invariant.
 
-##  design decisions
+## design decisions
 
 - **Unified lifecycle runtime** — `PluginRegistry` calls `onRegister`/`onInit`/`onReady`/`onClose` directly; the `HookExecutor` rejects registration of these four names. Upstream's dual-runtime hazard is eliminated by construction.
 - **`initTimeout`/`shutdownTimeout` are enforced** — every hook runs with an `AbortController`-bound `ctx.signal` that fires when the budget is exceeded.
@@ -116,4 +116,3 @@ ctx.getService("nope");  // type error — not augmented
 - **Topological sort is deterministic** — alphabetical tie-break for equal-in-degree nodes makes boot logs reproducible across runs.
 - **No `applyMigrations`** — migrations live in `@suaveplan/api-migrations`. The plugin registry knows nothing about databases.
 - **No ALS singletons** (`getCurrentApp`, etc.). Callers thread `ctx` explicitly.
-