Core/Quests: ported quest level scaling and reward money calculation from Classic

sql/updates/world/4.3.4/2025_06_18_03_world.sql

@@ -0,0 +1,11 @@
+ALTER TABLE `quest_template_addon`
+    ADD `QuestMaxScalingLevel` INT UNSIGNED NOT NULL DEFAULT 0,
+    ADD `RewardMoneyDifficulty` INT UNSIGNED NOT NULL DEFAULT 0,
+    ADD `RewardMoneyMultiplier` FLOAT NOT NULL DEFAULT 1,
+    ADD `RequiredMoney` INT NOT NULL DEFAULT 0;
+
+-- Convert negative reward money values to RequiredMoney
+UPDATE `quest_template_addon` AS qta
+INNER JOIN `quest_template` AS qt
+    ON qt.`ID` = qta.`ID`
+SET qta.`RequiredMoney` = qt.`RewardMoney` WHERE qt.`RewardMoney` < 0;