Merge branch 'codex/canonical-tool-output' into codex/code-mode-typed-results

# Conflicts:
#	docs/event-producer-consumer.md
#	docs/module-graph.md
#	packages/code-runtime/code-runtime-worker/package.json
#	packages/spill/spill-policy/package.json
#	pnpm-lock.yaml

packages/code-runtime/code-runtime/src/invariant.ts

@@ -0,0 +1,30 @@
+/**
+ * Package-owned invariant companion for `@deepseek-ai/dsh-code-runtime`.
+ * @module @deepseek-ai/dsh-code-runtime/invariant
+ */
+
+/* jscpd:ignore-start */
+import type { Context } from 'cordis'
+import type { InvariantInstaller } from '@deepseek-ai/dsh-invariants'
+
+const PACKAGE_NAME = '@deepseek-ai/dsh-code-runtime'
+
+/** Cordis companion plugin name. */
+export const name = 'code-runtime-invariant'
+/** Service required before the companion can reserve package ownership. */
+export const inject = ['invariants']
+
+/**
+ * No runtime invariant: this package exposes no independent event sequence or mutable data relation
+ * beyond contracts enforced at its owning seam.
+ */
+const install: InvariantInstaller = () => {}
+
+/**
+ * Register this package's invariant companion.
+ * @param ctx - Cordis context carrying the invariant service.
+ * @returns the installed registration's disposer after setup succeeds.
+ */
+export const apply = (ctx: Context): Promise<() => void> =>
+  Promise.resolve(ctx.invariants.register(PACKAGE_NAME, install))
+/* jscpd:ignore-end */