Add missing test cases for single-pod one-pod-mode pause direction,
EarDetectionState single-pod properties, and normal-mode steady-state.
Fix stale test comments that incorrectly claimed tests would fail.
Clarify onePodMode flow combine pattern and isWorn field semantics.
Migrate monolithic root CLAUDE.md into .claude/rules/ structure
with focused topic files and glob-based contextual loading.
Clean up leftover helper scripts in .claude/tmp/.