fix Allium specs syntax + implement Changing Level story
- Fix Allium spec syntax: type→value, enum for Status, remove implies chaining
- Fix factions.spec: add missing type declarations (Health, Level, Status)
- Fix magical-objects.spec: add type declarations, use .value for Health access,
remove entity inheritance syntax, remove invalid invariants
- Implement Changing Level: add totalDamageTaken + factionsJoined to Character
- Add level-up logic in dealDamage() and joinFaction()
- Add Level.damageThresholdForLevel() static method
- Fix changing-level.spec.ts properties: handle target survival, compute
expected level from threshold crossings
Willem van den Ende
39839dc594