Bug fixes, test coverage improvements, and CI integration with fallow code health analysis.

1.4.0 - 2026-06-03

Added

• GameEvent.PLAYER_MOVE is now emitted by savePlayerMove with correct index payload
• GameEvent.RESET is now emitted exclusively by reset() — no longer fires on every state update
• GameEvent.STATE_CHANGE is now also emitted by backToMove
• CI workflow (.github/workflows/ci.yml) with test coverage and fallow health analysis on push to main and pull requests
• test:coverage script in package.json — runs vitest with v8 coverage
• fallow script in package.json — runs fallow health with coverage data
• fallow added to devDependencies
• @vitest/coverage-v8 added to devDependencies
• Test suite expanded to 38 tests covering all event contracts, snapshot stability, _gameStatus reference preservation, custom board size, and all 8 winning combinations

Fixed

• _updateGameState was incorrectly emitting GameEvent.RESET on every savePlayerMove and backToMove call
• GameEvent.PLAYER_MOVE was never emitted (missing emit in _updateGameState)
• _gameStatus reference was unnecessarily replaced with a new object on every move when the game remained in "running" state

Changed

• Board._curretnFields renamed to Board._currentFields (typo fix)
• coverage/ added to .gitignore