Fix: Clean up managers when delegate expert not found

[FL4TLiN3]

Summary

• Fix resource leak reported by Bugbot in PR Fix: Add explicit error when delegate expert not found #9
• When delegate expert is not found, now properly closes already-initialized MCP and interactive skill managers before throwing error

Test plan

• Typecheck passes
• Unit tests pass
• E2E tests pass

Fixes: https://github.com/perstack-ai/perstack/pull/9/files#r2587142664

---

Note

Ensure initialized skill managers are closed when a delegate expert is missing during setup.

• Runtime (packages/runtime/src/skill-manager/helpers.ts):
  • On missing delegate expert, close all initialized managers (mcp, interactive, and any prior delegate) before throwing.
  • Refactor delegate manager creation from mapping to a for loop accumulating DelegateSkillManager[] to enable early cleanup and error handling.
• Release:
  • Changeset adds patch for @perstack/runtime with note on delegate cleanup (.changeset/fix-delegate-cleanup.md).

^{Written by Cursor Bugbot for commit e4b039a. This will update automatically on new commits. Configure here.}

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Project	Deployment	Preview	Comments	Updated (UTC)
perstack	Ready	Preview	Comment	Dec 4, 2025 1:54am

[codecov]

Codecov Report

❌ Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
packages/runtime/src/skill-manager/helpers.ts	0.00%	4 Missing ⚠️

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