Load PromotionClass from the promotion runes instead of static_rune_promotion

LoadAllPromotions builds one PromotionClass per promotion CLASS rune (22,
2504-2526 without 2522) and caches it, then runs the DB loader, which skips
cached ids, so only the CSR/admin rows 2901-2911 still come from
static_rune_promotion (decision: DB fallback). The world server calls it in
place of GET_ALL_PROMOTIONS; the login server now preloads promotions too, so
character load there gets the same cached objects. The SQL loader stays until
task 2.11.

Value changes: Templar 2516 manaMod 14 -> 15 (decision: JSON, D2).
description NULL -> rune_dsc blurb (unread). All other fields unchanged;
final parity before the switch (scripts/p22.py): 22 promotion rows, 0
differences in name, token, health, stamina and the 163 allowed rune tokens.
The static_rune_promotion comparator is removed; it would only compare the
JSON with itself now.

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

src/engine/objects/PromotionClass.java

@@ -16,6 +16,7 @@ import engine.net.ByteBufferWriter;
 import engine.parsers.cache.CObjectIndex;
 import engine.parsers.objects.RuneTemplate;
 import engine.util.Hasher;
+import org.pmw.tinylog.Logger;
 
 import java.sql.ResultSet;
 import java.sql.SQLException;
@@ -162,6 +163,24 @@ public class PromotionClass extends AbstractGameObject {
         return tokens;
     }
 
+    public static void LoadAllPromotions() {
+
+        int loadedCount = 0;
+
+        for (RuneTemplate rune : RuneTemplate._runes.values()) {
+            if (!isPromotionRune(rune))
+                continue;
+
+            DbManager.addToCache(new PromotionClass(rune));
+            loadedCount++;
+        }
+
+        Logger.info("Loaded " + loadedCount + " promotion classes from runes");
+
+        // The CSR/admin rows 2901+ have no promotion rune; the DB loader skips ids already cached
+        DbManager.PromotionQueries.GET_ALL_PROMOTIONS();
+    }
+
     public static void serializeForClientMsg(PromotionClass promotionClass, ByteBufferWriter writer) {
         writer.putInt(3); // For BaseClass
         writer.putInt(0); // Pad