refactor(战斗): 重构英雄阵型位置计算逻辑

- 将阵型位置计算提取到公共配置模块，定义 FormationPointX 映射
- 新增 resolveRangeTypeByHeroType 函数根据英雄类型解析默认攻击范围
- 新增 resolveFormationTargetX 函数统一计算英雄阵型目标X坐标
- 在 Hero 和 MoveSystem 中复用新的阵型计算函数，消除重复逻辑
- 优化远程英雄战斗逻辑，使其能根据阵型位置和攻击范围动态调整站位

assets/script/game/common/config/heroSet.ts

@@ -51,6 +51,26 @@ export const HeroPos={
     1:{pos:v3(0,BoxSet.GAME_LINE,0)},
     2:{pos:v3(0,BoxSet.GAME_LINE,0)},
 }
+
+export const FormationPointX = {
+    [SkillRange.Melee]: 0,
+    [SkillRange.Mid]: 100,
+    [SkillRange.Long]: 180,
+} as const;
+
+export const resolveRangeTypeByHeroType = (type: HType, rangeType?: SkillRange | null): SkillRange => {
+    if (rangeType !== undefined && rangeType !== null) return rangeType;
+    if (type === HType.warrior || type === HType.assassin) return SkillRange.Melee;
+    if (type === HType.remote) return SkillRange.Long;
+    return SkillRange.Mid;
+}
+
+export const resolveFormationTargetX = (fac: FacSet, type: HType, rangeType?: SkillRange | null): number => {
+    const resolvedRangeType = resolveRangeTypeByHeroType(type, rangeType);
+    const side = fac === FacSet.MON ? 1 : -1;
+    return FormationPointX[resolvedRangeType] * side;
+}
+
 export const MonSet = {
     0:{pos:v3(360,BoxSet.GAME_LINE+10,0)},
     1:{pos:v3(360,BoxSet.GAME_LINE-10,0)},