Merge branch 'codex/simp-agent-entry-state' into codex/simp-unify-agent-session-id

# Conflicts:
#	docs/config-catalog.md
#	docs/cordis-catalog/services.md
#	docs/event-producer-consumer.md
#	docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md
#	docs/rfc/implemented/architecture/2026-06-20-branded-ids.md
#	docs/rfc/implemented/simplification/2026-06-20-remove-agent-boundary-mirror-events.md
#	docs/rfc/proposed/feature/2026-07-07-claude-code-and-codex-subagent-backends.md
#	docs/rfc/proposed/simplification/2026-06-20-unify-agent-and-session-id.md
#	packages/bash/tool-bash/README.md
#	packages/bash/tool-bash/src/index.ts
#	packages/bash/tool-bash/tests/tools.spec.ts
#	packages/core/agent-loop/README.md
#	packages/core/agent-loop/tests/properties.spec.ts
#	packages/core/agent/README.md
#	packages/core/agent/src/index.ts
#	packages/guard/repeat-tool-guard/src/index.ts
#	packages/hooks/hooks-claude/tests/bridge.spec.ts
#	packages/subagent/subagent-acp/tests/mock-acp-server.ts
#	packages/ui/acp/tests/dispose.spec.ts
#	packages/ui/stdio-agent/src/index.ts
#	packages/ui/stdio-agent/src/stdio-chat.ts
#	packages/ui/stdio-agent/tests/stdio-chat.spec.ts
#	packages/util/brand/src/index.ts

packages/todo/tool-todo/tests/tool-todo.spec.ts

@@ -150,10 +150,7 @@ describe('dsh-tool-todo', () => {
   })
 
   it('has the namespace-plugin export shape (no stray default) so the Loader keeps name/inject/apply', () => {
-    // Postmortem 0001 guard: this plugin HAS `inject = ['tools']`, so a stray
-    // `export default apply` would collapse the module via `unwrapExports`
-    // (`exports.default ?? exports`), DROP `inject`, and crash at load with
-    // "cannot get property … without inject". Guard the shape directly.
+    // A default export would make Loader unwrap only apply and drop `inject`.
     expect('default' in tool).toBe(false)
     expect(tool.name).toBe('tool-todo')
     expect(tool.inject).toEqual(['tools'])