Add comprehensive unit tests for:
- Config and state serialization (DefaultConfig, LoadState, SaveState)
- Session name pattern matching (isWitnessSession)
- Lifecycle request parsing (parseLifecycleRequest)
- Identity to session mapping (identityToSession)
Tests document a bug where parseLifecycleRequest always matches 'cycle'
because "LIFECYCLE:" prefix contains "cycle". Filed as gt-rixa.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
0716c4d48a