39e07b542d
- twopc.tla: Add coordinatorLog (persistent WAL for decisions) - twopc.tla: Add CrashCoordinator action - twopc.tla: Add RecoverCoordinator action (reads from coordinatorLog) - twopc.tla: Add ParticipantTimeout (only if coordinatorLog = Nil) - twopc.tla: Add RecoveryConsistency invariant - models/twopc.cfg: Add RecoveryConsistency to checked invariants - Update PLAN.md, ANALYSIS.md, README.md with new metrics