Resolve every rolled ItemDefinition before mutating the character or
creating the CombatReward row, so a missing definition can no longer
half-grant (XP/silver saved, reward row created, then throw). Also
make the immediate grant response and a later loadRewards replay
agree on item order by sorting both on itemDefinitionId instead of
roll/insertion order.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Declares every new TypeORM entity Slice 0.4 needs (ItemDefinition,
CharacterItem, LootTable, LootTableEntry, CombatReward, CombatRewardItem)
plus the ItemType/EquipmentSlot/ItemRarity enums, and adds the two columns
existing entities gain: Character.silver and MonsterDefinition.lootTableId.
No migration SQL or service logic yet - just schema declarations backed by
a metadata-driven schema spec.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
