fix(server): delegated Claude children follow subagentPromptCacheTtl

Keep Anthropic's default when the setting is unset.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
7ad8fdfbc6Theo Browne committed on 10/21/2026, 11:43:33 AMparent62a7ac2

Checks

All checks passed
2 files changedLine totals unavailable