Build PromotionClass from its class rune and compare every field

Adds PromotionClass(RuneTemplate): health/mana/stamina from rune_health/mana/
stamina, token = SBStringHash(rune_sub_type), description from rune_dsc, and
allowedRunes = the sub type tokens of the race and base class runes named in
item_race_req/item_class_req (all whitelists). Skills, powers and effects still
load from the DB by rune id (tasks 2.8, 2.9, 2.10). isPromotionRune selects the
non-creation CLASS runes that require a base class (skips 2500-2503 and Pet).
A static_rune_promotion comparator checks every field against a JSON-built
PromotionClass; rows 2901+ (TALENT runes in the JSON) report as missing.

Offline parity (scripts/p22.py, 33 rows + 163 promotionrunereq rows vs 22
promotion runes): 0 differences in name, token, health, stamina and allowed
rune tokens. Templar 2516 manaMod is 14 in the DB and 15 in the JSON.
2901-2911 have no promotion rune. description is NULL in the DB and the
rune_dsc blurb in the JSON; nothing reads PromotionClass.getDescription().

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/engine/objects/PromotionClass.java

@@ -10,8 +10,12 @@
 package engine.objects;
 
 import engine.gameManager.DbManager;
+import engine.mbEnums;
 import engine.mbEnums.GameObjectType;
 import engine.net.ByteBufferWriter;
+import engine.parsers.cache.CObjectIndex;
+import engine.parsers.objects.RuneTemplate;
+import engine.util.Hasher;
 
 import java.sql.ResultSet;
 import java.sql.SQLException;
@@ -103,6 +107,61 @@ public class PromotionClass extends AbstractGameObject {
 
     }
 
+    /**
+     * Rune Template Constructor
+     */
+    public PromotionClass(RuneTemplate rune) {
+        super(rune.template_id);
+
+        this.name = rune.obj_name;
+        this.description = rune.rune_dsc;
+        this.token = Hasher.SBStringHash(rune.rune_sub_type);
+        this.healthMod = rune.rune_health;
+        this.manaMod = rune.rune_mana;
+        this.staminaMod = rune.rune_stamina;
+        this.allowedRunes = getAllowedRuneTokens(rune);
+        this.skillsGranted = DbManager.SkillReqQueries.GET_REQS_FOR_RUNE(this.getObjectUUID());
+        this.powersGranted = PowerReq.getPowerReqsForRune(this.getObjectUUID());
+        this.effectsGranted = DbManager.RuneBaseEffectQueries.GET_EFFECTS_FOR_RUNEBASE(this.getObjectUUID());
+        this.effectsGrantedFighter = DbManager.RuneBaseEffectQueries.GET_EFFECTS_FOR_RUNEBASE((this.getObjectUUID() * 10) + 2500);
+        this.effectsGrantedHealer = DbManager.RuneBaseEffectQueries.GET_EFFECTS_FOR_RUNEBASE((this.getObjectUUID() * 10) + 2501);
+        this.effectsGrantedRogue = DbManager.RuneBaseEffectQueries.GET_EFFECTS_FOR_RUNEBASE((this.getObjectUUID() * 10) + 2502);
+        this.effectsGrantedMage = DbManager.RuneBaseEffectQueries.GET_EFFECTS_FOR_RUNEBASE((this.getObjectUUID() * 10) + 2503);
+        this.effectsList = DbManager.MobBaseQueries.GET_RUNEBASE_EFFECTS(this.getObjectUUID());
+    }
+
+    // Promotions are the CLASS runes that require a base class; this skips the creation classes and Pet 2522.
+
+    public static boolean isPromotionRune(RuneTemplate rune) {
+        return rune.rune_type == mbEnums.RuneType.CLASS && !rune.rune_is_standard_character_creation
+                && !rune.item_class_req.isEmpty();
+    }
+
+    // Race and base class tokens are SBStringHash(rune_sub_type) of the runes named in the req lists.
+    // Every promotion rune's lists are whitelists (restrict false).
+
+    private static ArrayList<Integer> getAllowedRuneTokens(RuneTemplate rune) {
+
+        ArrayList<Integer> tokens = new ArrayList<>();
+        Integer classRuneId;
+        int token;
+
+        for (mbEnums.MonsterType race : rune.item_race_req)
+            for (int raceRuneId : CObjectIndex.getRaceRuneIds(race)) {
+                token = Hasher.SBStringHash(RuneTemplate._runes.get(raceRuneId).rune_sub_type);
+                if (!tokens.contains(token))
+                    tokens.add(token);
+            }
+
+        for (mbEnums.ClassType classType : rune.item_class_req) {
+            classRuneId = CObjectIndex.getClassRuneId(classType);
+            if (classRuneId != null)
+                tokens.add(Hasher.SBStringHash(RuneTemplate._runes.get(classRuneId).rune_sub_type));
+        }
+
+        return tokens;
+    }
+
     public static void serializeForClientMsg(PromotionClass promotionClass, ByteBufferWriter writer) {
         writer.putInt(3); // For BaseClass
         writer.putInt(0); // Pad