Sækja Letta Code 0.32.13

What's Changed
- fix(a2a): discover agents as the current sender [LET-12546] by @carenthomas in https://github.com/letta-ai/letta-code/pull/4483
- test(ci): retry unaccepted teleport fixture requests by @cpacker in https://github.com/letta-ai/letta-code/pull/4487
- fix(subagents): terminate stopped agent process trees by @cpacker in https://github.com/letta-ai/letta-code/pull/4497
- feat(ci): add expert escalation after code review by @carenthomas in https://github.com/letta-ai/letta-code/pull/4501
- fix(memfs): skip attached sync on local backend by @cpacker in https://github.com/letta-ai/letta-code/pull/4504
- chore(ci): remove CODEOWNERS by @cpacker in https://github.com/letta-ai/letta-code/pull/4505
- test(ci): allow model configuration the same time as inference by @cpacker in https://github.com/letta-ai/letta-code/pull/4460
- test(listener): keep ownership tests independent of Cloud by @cpacker in https://github.com/letta-ai/letta-code/pull/4510
- fix(channels): restart gateway after unexpected exits by @just-cameron in https://github.com/letta-ai/letta-code/pull/4478
- docs(skills): use applicability metadata in letta-guide by @sarahwooders in https://github.com/letta-ai/letta-code/pull/4515
- feat(distribution): add self-contained Python wheels by @letta-integration[bot] in https://github.com/letta-ai/letta-code/pull/4518
- fix(cli): restore local ChatGPT reasoning picker by @cpacker in https://github.com/letta-ai/letta-code/pull/4474
- chore: bump version to 0.32.13 by @github-actions[bot] in https://github.com/letta-ai/letta-code/pull/4523
Full Changelog: https://github.com/letta-ai/letta-code/compare/v0.32.12...v0.32.13