docs: record combat, wolves, factions, and tribe war systems

docs/SIMULATION_DEFINITIONS.md

@@ -83,6 +83,27 @@ carried-inventory holder in economic events. Player-performed pantry food
 supply is witnessed by nearby villagers and can raise their directed trust
 toward the player, with the player as a relationship subject.
 
+## Item and weapon vocabulary
+
+`ItemDefinition` is the editor-readable resource contract for items, and
+`SimulationItems` is the current registry. Weapons carry `damage`, `reach`,
+and `attack_cooldown` and fill the `hand` equip slot, so the same contract can
+later host non-weapon items (food sacks, tools, armour) in a full inventory.
+The current weapons are `item_sword` (the player's equipped blade) and
+`item_claw` (wolf bites and unarmed defenders). NPC guards are equipped with
+swords; other villagers fight with claws, which feeds the village-defense
+derivation.
+
+## Conflict vocabulary
+
+`CombatantStateRecord` and `FactionStateRecord` use stable IDs. Combatant kinds
+are `npc`, `raider`, `wolf`, and `player`; NPC combatants reference their
+`SimNPC` by stable ID. Factions are `faction_village` and `faction_tribe`, with
+`neutral`/`hostile` stances and `none`/`planned`/`raiding`/`aborted` war plans.
+Combat, raid, and war narrative facts use the stable event types
+`combatant_hurt`, `combatant_killed`, `raid_started`, `war_resolved`,
+`war_aborted`, and `wolf_hunt`.
+
 ## Validation
 
 The registry rejects: