Update class mechanics, stat rulesets, and CoA reference catalogs

src/game/itemStats.test.ts

@@ -57,6 +57,28 @@ describe("boss item stats", () => {
     expect(normalizeItemStats(undefined, fallback)).toEqual(itemStatsFor(fallback));
   });
 
+  it("persists explicit RoM-native gear separately from unchanged WotLK stats", () => {
+    const source = {
+      itemId: 999001,
+      quality: "rare" as const,
+      inventorySlot: "head",
+      armorType: null,
+      weaponType: null,
+      itemLevel: 20,
+      sourceItemLevel: 20,
+      sourceStats: { strength: 8, spellPower: 40 },
+      romNative: { strength: 3, magicalDamage: 17, healPowerRateFactor: 1.15 },
+    };
+    const item = itemStatsFor(source);
+    expect(item).toMatchObject({ strength: 8, spellPower: 40 });
+    expect(item.romNative).toEqual(source.romNative);
+    expect(normalizeItemStats(item, source)).toMatchObject({
+      strength: 8,
+      spellPower: 40,
+      romNative: source.romNative,
+    });
+  });
+
   it("turns stamina into health and armor into reduced incoming damage", () => {
     expect(healthFromStamina(7)).toBe(70);
     expect(damageAfterArmor(100, 0, 20)).toBe(100);