Iteam cleanup + less migration

module/models/ammunition.mjs

@@ -7,11 +7,21 @@ export default class OathHammerAmmunition extends foundry.abstract.TypeDataModel
     const schema = {}
 
     schema.description = new fields.HTMLField({ required: true, textSearch: true })
-    schema.ammoType = new fields.StringField({ required: true, initial: "arrow", choices: SYSTEM.AMMO_TYPE_CHOICES })
-    schema.quantity = new fields.NumberField({ ...requiredInteger, initial: 1, min: 0 })
-    schema.properties = new fields.StringField({ required: true, nullable: false, initial: "" })
-    schema.cost = new fields.NumberField({ ...requiredInteger, initial: 0, min: 0 })
-    schema.currency = new fields.StringField({ required: true, initial: "gp", choices: SYSTEM.CURRENCY_CHOICES })
+
+    // Ammo type determines special effect (p.88):
+    //   bodkin     → −1 to target's armor roll
+    //   envenomed  → poison damage
+    //   incendiary → flaming damage
+    schema.ammoType = new fields.StringField({ required: true, initial: "standard", choices: SYSTEM.AMMO_TYPE_CHOICES })
+
+    // Quantity of individual arrows/bolts in this stack
+    schema.quantity = new fields.NumberField({ ...requiredInteger, initial: 20, min: 0 })
+
+    // Rarity: DV for Fortune check when purchasing; 0 = always available
+    schema.rarity = new fields.NumberField({ ...requiredInteger, initial: 0, min: 0, max: 6 })
+
+    schema.cost = new fields.NumberField({ required: true, nullable: false, initial: 0, min: 0 })
+    schema.currency = new fields.StringField({ required: true, initial: "sp", choices: SYSTEM.CURRENCY_CHOICES })
 
     return schema
   }