feat: 新增英雄召唤事件并优化UI布局与组件注释

- 在 MissionHeroComp 中召唤英雄后派发 MasterCalled 事件，以更新英雄信息面板
- 调整 hnode.prefab 中多个节点的位置和尺寸，优化界面布局
- 为多个 TypeScript 组件文件添加详细注释，说明职责、关键设计和依赖关系
- 在 MissionCardComp 中完善英雄信息面板的创建、排序和布局逻辑

assets/resources/gui/element/hnode.prefab

@@ -578,7 +578,7 @@
     },
     "_lpos": {
       "__type__": "cc.Vec3",
-      "x": 55,
+      "x": 65,
       "y": 12.894000000000005,
       "z": 0
     },
@@ -672,7 +672,7 @@
     },
     "_contentSize": {
       "__type__": "cc.Size",
-      "width": 110,
+      "width": 130,
       "height": 165
     },
     "_anchorPoint": {
@@ -1509,7 +1509,7 @@
     },
     "_contentSize": {
       "__type__": "cc.Size",
-      "width": 110,
+      "width": 130,
       "height": 165
     },
     "_anchorPoint": {
@@ -1611,7 +1611,7 @@
     },
     "_lpos": {
       "__type__": "cc.Vec3",
-      "x": 55,
+      "x": 65,
       "y": 12.894000000000005,
       "z": 0
     },
@@ -1705,7 +1705,7 @@
     },
     "_contentSize": {
       "__type__": "cc.Size",
-      "width": 110,
+      "width": 130,
       "height": 165
     },
     "_anchorPoint": {
@@ -2542,7 +2542,7 @@
     },
     "_contentSize": {
       "__type__": "cc.Size",
-      "width": 110,
+      "width": 130,
       "height": 165
     },
     "_anchorPoint": {
@@ -4549,7 +4549,7 @@
     },
     "_lpos": {
       "__type__": "cc.Vec3",
-      "x": 55,
+      "x": 65,
       "y": -90,
       "z": 0
     },
@@ -4749,7 +4749,7 @@
     },
     "_contentSize": {
       "__type__": "cc.Size",
-      "width": 104,
+      "width": 124,
       "height": 40
     },
     "_anchorPoint": {
@@ -4946,7 +4946,7 @@
     },
     "_contentSize": {
       "__type__": "cc.Size",
-      "width": 110,
+      "width": 130,
       "height": 150
     },
     "_anchorPoint": {