- Add skill selection resolver for deterministic session skill sets
- Wire skill override into createKbAgent via AgentOptions
- Export skill resolver types and functions from engine index
- Add regression tests for skill override wiring and resolver fallback semantics
- Apply skill selection to triage and executor sessions
- Apply skill selection to reviewer, merger, and heartbeat sessions
- Fix SessionSkillContextInput to use AgentStore instead of TaskStore
- Add session-skill-context helper for unified skill selection across all session types
- Update memory with skill resolver diagnostics distinction
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