Merge branch 'master' into worktree/routed-model-compaction-policy

# Conflicts:
#	docs/event-producer-consumer.md

docs/cordis-catalog/services.md

@@ -613,6 +613,24 @@ Types: [Agent](../core-data-structures/core.md) · [CreateGoalRequest](../core-d
 
 Source: [`packages/goal/goal/src/index.ts:135`](../../packages/goal/goal/src/index.ts)
 
+## `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)
+
 ## `ctx.llm` — `LlmService`
 
 The abstract `llm` service: an adapter registry plus a streaming model-call surface, interceptable via the `llm/stream` waterfall.