refactor(skill/hero): 重构技能buff系统，优化属性处理与技能加成逻辑

- 新增HeroAttrsComp的add_special_attr方法，实现动态累加任意数字类型的英雄属性
- 废弃旧的BuffConf数组配置格式，改用单一buff_type字段简化技能buff配置
- 修复金币类技能加成未随技能等级提升的问题，调整计算逻辑为baseGold + sUp.ap * skillLv
- 重构applyActualFriendlyEffect方法，添加技能等级参数，按buff类型匹配对应升级加成
- 更新所有内置技能配置为新的格式规范

assets/script/game/hero/SCastSystem.ts

@@ -412,13 +412,13 @@ export class SCastSystem extends ecs.ComblockSystem implements ecs.ISystemUpdate
             : this.pickRandomFriendlyTargets(targets, sHit);
         
         for (const target of applyTargets) {
-            this.applyActualFriendlyEffect(target, kind, sAp, _cAttrsComp, config, sUp);
+            this.applyActualFriendlyEffect(target, kind, sAp, _cAttrsComp, config, sUp, _skillLv);
         }
     }
 
 
 
-    private applyActualFriendlyEffect(target: HeroViewComp, kind: SkillKind, sAp: number, _cAttrsComp: HeroAttrsComp, config: SkillConfig, sUp: any) {
+    private applyActualFriendlyEffect(target: HeroViewComp, kind: SkillKind, sAp: number, _cAttrsComp: HeroAttrsComp, config: SkillConfig, sUp: any, _skillLv: number = 1) {
         if (!target.ent) return;
         const model = target.ent.get(HeroAttrsComp);
         if (!model || model.is_dead) return;
@@ -440,23 +440,35 @@ export class SCastSystem extends ecs.ComblockSystem implements ecs.ISystemUpdate
             model.add_shield(addShield);
         } else if (kind === SkillKind.Gold) {
             const baseGold = config.gold ?? config.ap;
-            const addGold = baseGold + (sUp.ap);
+            const addGold = baseGold + (sUp.ap * _skillLv);
             if (addGold > 0) {
                 MissionEconomy.addCoin(addGold);
             }
         }
-        if (!config.buffs || config.buffs.length === 0) return;
-        for (const buffConf of config.buffs) {
-            if (!buffConf) continue;
-            const sBuffAp=buffConf.value+sUp.buff_ap
-            const sBuffHp=buffConf.value+sUp.buff_hp
-            switch (buffConf.buff){
+        
+        if (config.buff_type !== undefined) {
+            const baseValue = config.ap;
+            let upgradeValue = 0;
+            
+            // 根据 buff 类型选择对应的升级加成
+            if (config.buff_type === Attrs.ap) upgradeValue = sUp.buff_ap || 0;
+            else if (config.buff_type === Attrs.hp_max) upgradeValue = sUp.buff_hp || 0;
+            else if (config.buff_type === Attrs.critical) upgradeValue = sUp.crt || 0;
+            // 如果后续有冰冻等，在这里加上对应的 sUp 字段即可，如 sUp.frz
+            
+            const totalBuffValue = baseValue + upgradeValue;
+            
+            switch (config.buff_type){
                 case Attrs.ap:
-                    model.add_ap(sBuffAp)
-                    break
+                    model.add_ap(totalBuffValue);
+                    break;
                 case Attrs.hp_max:
-                    model.add_hp_max(sBuffHp)
-                    break
+                    model.add_hp_max(totalBuffValue);
+                    break;
+                default:
+                    // 除了 hp_max 和 ap，其他固定属性走统一的 add_special_attr 方法
+                    model.add_special_attr(config.buff_type, totalBuffValue);
+                    break;
             } 
         }
     }