[codex] bump codex and claude ACP adapter pins

[osolmaz]

Summary

• bump the built-in codex adapter range from ^0.10.0 to ^0.11.1
• bump the built-in claude adapter range from ^0.24.2 to ^0.25.0
• bump the package release version to 0.4.1 and sync the tracked root lockfile metadata
• add an Unreleased changelog entry for the built-in adapter pin update

Why

The built-in ACP adapter package ranges in src/agent-registry.ts were behind the latest published @zed-industries/codex-acp and @agentclientprotocol/claude-agent-acp releases. This updates the default built-in commands so new acpx sessions resolve to the current published adapters by default. The branch also increments the package patch version so the release metadata is ready to tag and publish.

Impact

Users who rely on the built-in codex and claude agent names will pick up newer adapter releases without needing a custom agent.command override. Release metadata will publish as 0.4.1.

Validation

• pnpm exec oxfmt --check src/agent-registry.ts CHANGELOG.md
• pnpm exec oxfmt --check package.json package-lock.json
• pnpm run typecheck
• pnpm run lint
• pnpm run build
• pnpm run viewer:typecheck
• pnpm run viewer:build

Validation Notes

• pnpm run check is currently blocked by unrelated local format issues in examples/flows/ai-battle/ai-battle.flow.ts and sessions/2026-04-03-2041-codex-vs-claude/manifest.md
• pnpm run test:coverage still exits non-zero locally even after all 471 tests pass; I did not treat that as a clean validation result for this PR

[osolmaz]

Landed via temp rebase onto main.

• Gate: GitHub CI passed, and the full local landing gate passed through format/typecheck/lint/build/viewer/docs. pnpm run check hit one timeout-only failure in integration: flow run fails ACP nodes promptly when the agent disconnects mid-prompt, and an immediate isolated rerun of that test passed in the clean landing worktree.
• Land commit: 57a5a74
• Merge commit: 7dce60f

Thanks @osolmaz!