Merge remote-tracking branch 'origin/master' into worktree/semantic-session-checkpoints

# Conflicts:
#	docs/event-producer-consumer.md
#	docs/module-graph.md
#	examples/tui-agent/tests/tui-keyless-smoke.e2e.ts
#	packages/examples/acp-demo/package.json
#	packages/examples/cli-demo/tsconfig.json
#	packages/support/invariants/src/index.ts
#	packages/support/invariants/tests/invariants.spec.ts
#	pnpm-lock.yaml

packages/session-persistence/session-persistence-sqlite/src/invariant.ts

@@ -0,0 +1,30 @@
+/**
+ * Package-owned invariant companion for `@deepseek-ai/dsh-session-persistence-sqlite`.
+ * @module @deepseek-ai/dsh-session-persistence-sqlite/invariant
+ */
+
+/* jscpd:ignore-start */
+import type { Context } from 'cordis'
+import type { InvariantInstaller } from '@deepseek-ai/dsh-invariants'
+
+const PACKAGE_NAME = '@deepseek-ai/dsh-session-persistence-sqlite'
+
+/** Cordis companion plugin name. */
+export const name = 'session-persistence-sqlite-invariant'
+/** Service required before the companion can reserve package ownership. */
+export const inject = ['invariants']
+
+/**
+ * No runtime invariant: persistence correctness requires backend round-trip and crash-tail tests;
+ * this package exposes no continuously observable in-process relation.
+ */
+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 */