Merge codex/invariant-service-seam into codex/invariant-service-review-fixes

# Conflicts:
#	.agents/notes/implemented/architecture/2026-07-19-package-invariant-runtime-contracts.i18n.yaml
#	scripts/test-invariants.spec.ts
#	scripts/test-invariants.ts

packages/core/scope/src/scoped-events.generated.ts

@@ -24,6 +24,7 @@ const scopedSubjectResolvers: Readonly<Record<string, ScopedSubjectResolver | nu
   'agent/turn-continuation': args => args[0],
   'agent/turn-stop': args => args[0],
   'approval/request': args => (args[0] as Record<string, unknown>)['agent'],
+  'goal/changed': args => args[0],
   'session/created': null,
   'session/disposed': null,
   'session/event': null,

packages/core/scope/tests/invariant.spec.ts

@@ -47,6 +47,7 @@ describe('scoped-dispatch invariants', () => {
       ['agent/turn-continuation', [agent, 1, { action: 'stop' }, () => Promise.resolve({ action: 'stop' })]],
       ['agent/turn-stop', [agent, 1]],
       ['approval/request', [{ agent, toolName: 'echo' }, () => Promise.resolve('unavailable')]],
+      ['goal/changed', [agent, { operation: 'create', ref: { id: 'goal-a', revision: 1 } }]],
       ['system-prompt/assemble', [[], { scope: agent }]],
       ['tools/execute', [{ callId: 'c', name: 't', arguments: {}, agent }, () => Promise.resolve({ content: [], isError: false })]],
       ['tools/post-execute', [{ callId: 'c', name: 't', arguments: {}, agent }, { content: [], isError: false }, () => Promise.resolve({ kind: 'accept' })]],