FV-14: TLA+ faithfulness tests for Nim state machines

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Add tests/tla_faithfulness.nim verifying Nim code against TLA+ invariants:
- Raft: ElectionSafety, LogMatching, CommittedIndexValid
- MVCC: NoDirtyReads, CommittedMustStart
- 2PC: Atomicity, RecoveryConsistency

Documented gap: Nim MVCC allows multiple committed versions per key,
while TLA+ spec enforces first-committer-wins (WriteWriteConflict).
This test ensures future changes to Nim code maintain alignment with specs.

Update PLAN.md (FV-14 done), CHANGELOG.md, test_all.nim includes new suite.

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dimgigov

2026-05-07 21:59:06 +03:00

parent 4791434cea

commit 8f87491eca

5 changed files with 198 additions and 1 deletions

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