feat(地图): 在战斗阶段隐藏英雄出售按钮

在战斗阶段自动隐藏英雄信息面板上的出售按钮，避免玩家在战斗过程中误操作出售英雄。通过新增的 setBattlePhase 方法控制按钮显隐，并在任务卡组件中根据战斗状态同步更新所有英雄信息面板。

assets/resources/gui/element/hnode.prefab

@@ -4834,7 +4834,7 @@
     "_lpos": {
       "__type__": "cc.Vec3",
       "x": 67.5,
-      "y": -90,
+      "y": -96.599,
       "z": 0
     },
     "_lrot": {
@@ -5033,7 +5033,7 @@
     },
     "_contentSize": {
       "__type__": "cc.Size",
-      "width": 129,
+      "width": 135,
       "height": 40
     },
     "_anchorPoint": {
@@ -5181,10 +5181,10 @@
     },
     "_alignFlags": 44,
     "_target": null,
-    "_left": 3,
-    "_right": 3,
+    "_left": 0,
+    "_right": 0,
     "_top": 0,
-    "_bottom": -35,
+    "_bottom": -41.599000000000004,
     "_horizontalCenter": 0,
     "_verticalCenter": 0,
     "_isAbsLeft": true,
@@ -5259,7 +5259,9 @@
     "icon_node": {
       "__id__": 10
     },
-    "sell_node": null,
+    "sell_node": {
+      "__id__": 209
+    },
     "NF_node": {
       "__id__": 117
     },