fix: 修正英雄移动逻辑中距离判断条件

将原条件 `dist < minRange` 改为 `dist >= minRange`，并与阵型移动需求结合。原逻辑在距离过近时也会触发移动，导致英雄可能无法保持在有效攻击范围内。新逻辑确保仅在距离足够且需要调整阵型位置时才移动。

assets/script/game/hero/MoveComp.ts

@@ -198,8 +198,8 @@ export class MoveSystem extends ecs.ComblockSystem implements ecs.ISystemUpdate
         const [minRange, maxRange] = this.resolveCombatRange(model, defaultMin, defaultMax);
         const dist = Math.abs(currentX - enemyX);
         const needMoveToFormation = Math.abs(currentX - targetX) > 5;
-        const shouldKeepDistance = dist < minRange;
-        if (needMoveToFormation || shouldKeepDistance) {
+        
+        if (dist >= minRange && needMoveToFormation) {
             const dir = targetX > currentX ? 1 : -1;
             move.direction = dir;
             const speed = model.speed / 3;