feat: 新增技能图标英雄语境覆写功能

1. 扩展SkillOverrides接口，新增icon字段支持自定义图标
2. 前端常量与编辑器适配：新增字符串型覆写类型与图标候选选择器
3. 新增getHeroSkillIcon工具函数，实现英雄专属图标优先级加载逻辑
4. 修复并优化技能图标展示逻辑，支持同底座技能不同英雄差异化图标
5. 重构部分英雄配置格式，统一代码风格

assets/script/game/map/SinfoComp.ts

@@ -35,7 +35,7 @@ import { oops } from "db://oops-framework/core/Oops";
 import { CardTriggerType, CardConfig } from "../common/config/CardSet";
 import { SkillSet, FieldSkillSet } from "../common/config/SkillSet";
 import { SkillCardList } from "../common/config/SCardSet";
-import { FieldEntry, SkillTriggerType } from "../common/config/heroSet";
+import { FieldEntry, SkillTriggerType, HeroInfo, getHeroSkillIcon } from "../common/config/heroSet";
 import { buildCardDescRich } from "../common/config/CardSkillText";
 import { buildHeroSkillTierLines, buildHeroGroupTierLines, HeroSkillTierLine } from "../common/HeroSkillText";
 import { smc } from "../common/SingletonModuleComp";
@@ -372,6 +372,10 @@ export class SinfoComp extends CCComp {
     /** 解析图标ID */
     private resolveIconId(p: SInfoParams): string | undefined {
         if (p.card_icon) return p.card_icon;
+        // 英雄图鉴模式：英雄语境图标优先（overrides.icon 覆写），底座 icon 兜底
+        if (p.hero_uuid) {
+            return getHeroSkillIcon(HeroInfo[p.hero_uuid], p.uuid, p.hero_slot, p.hero_group);
+        }
         // 技能卡：从 SkillCardList 查 icon
         const skillCard = SkillCardList.find(c => c.uuid === p.uuid || c.skill === p.uuid);
         if (skillCard?.icon) return skillCard.icon;