feat(skill): 支持技能参数自定义覆盖

本次修改实现同技能不同角色的差异化技能效果：
1. 新增SkillOverrides接口与mergeSkillParams工具函数，用于合并基础技能配置和角色覆盖参数
2. 更新英雄配置、属性组件、触发辅助系统与施法系统以适配该机制
3. 为盾骑士、医师添加示例差异化配置，验证功能可行性
4. 整理技能配置，删除冗余重复的旧技能条目
5. 新增技能重构设计计划文档，替换旧的迁移计划文档

assets/script/game/skill/Skill.ts

@@ -1,6 +1,6 @@
 import { BoxCollider2D, instantiate, Node, Prefab, v3, Vec3, NodePool } from "cc";
 import { ecs } from "../../../../extensions/oops-plugin-framework/assets/libs/ecs/ECS";
-import { EType, SkillSet, SkillUpList } from "../common/config/SkillSet";
+import { EType, SkillSet, SkillUpList, SkillOverrides, mergeSkillParams } from "../common/config/SkillSet";
 import { oops } from "db://oops-framework/core/Oops";
 import { HeroAttrsComp } from "../hero/HeroAttrsComp";
 import { Attrs } from "../common/config/HeroAttrs";
@@ -101,12 +101,13 @@ export class Skill extends ecs.Entity {
         this.addComponents<SMoveDataComp>(SMoveDataComp);
     }
     load(startPos: Vec3, parent: Node, s_uuid: number, targetPos: Vec3,
-        caster:HeroViewComp,cAttrsComp:HeroAttrsComp, skill_lv:number=0, ext_dmg:number=0) {
-        const config = SkillSet[s_uuid];
+        caster:HeroViewComp,cAttrsComp:HeroAttrsComp, skill_lv:number=0, ext_dmg:number=0, overrides?: SkillOverrides) {
+        let config = SkillSet[s_uuid];
         if (!config) {
             mLogger.error(this.debugMode, 'Skill', "[Skill] 技能配置不存在:", s_uuid);
             return;
         }
+        config = mergeSkillParams(config, overrides);
        
         // 加载预制体
         const path = `game/skill/atk/${config.sp_name}`;