refactor(mission): 重构卡牌系统为英雄卡槽组件

1. 新增CHeroComp作为英雄卡槽专用组件，替换原CardComp
2. 调整mission.prefab布局与预制体引用，适配新卡槽组件
3. 优化MissionCardComp的卡槽缓存与布局逻辑
4. 更新所有相关注释与类型引用，统一代码语义

assets/resources/gui/element/cHero.prefab.meta

@@ -0,0 +1,13 @@
+{
+  "ver": "1.1.50",
+  "importer": "prefab",
+  "imported": true,
+  "uuid": "f2f9a3e0-d0f5-46f4-84bd-dd54c2248470",
+  "files": [
+    ".json"
+  ],
+  "subMetas": {},
+  "userData": {
+    "syncNodeName": "cHero"
+  }
+}

assets/resources/gui/element/mission.prefab

@@ -5906,7 +5906,7 @@
   },
   {
     "__type__": "cc.Node",
-    "_name": "cards",
+    "_name": "cbox",
     "_objFlags": 0,
     "__editorExtras__": {},
     "_parent": {
@@ -5931,7 +5931,7 @@
     "_lpos": {
       "__type__": "cc.Vec3",
       "x": 0,
-      "y": 296.948,
+      "y": 280,
       "z": 0
     },
     "_lrot": {
@@ -5971,8 +5971,8 @@
     },
     "_contentSize": {
       "__type__": "cc.Size",
-      "width": 519.4,
-      "height": 300
+      "width": 720,
+      "height": 340
     },
     "_anchorPoint": {
       "__type__": "cc.Vec2",
@@ -5983,7 +5983,7 @@
   },
   {
     "__type__": "cc.CompPrefabInfo",
-    "fileId": "d52ar8fGRCcJCkEGKYqLmS"
+    "fileId": "78ZkzaYgNLrq5b2cza8aKb"
   },
   {
     "__type__": "cc.Widget",
@@ -5997,14 +5997,14 @@
     "__prefab": {
       "__id__": 352
     },
-    "_alignFlags": 42,
+    "_alignFlags": 45,
     "_target": null,
-    "_left": 100.30000000000001,
-    "_right": 100.30000000000001,
-    "_top": -491.51300000000003,
-    "_bottom": 491.51300000000003,
+    "_left": 0,
+    "_right": 0,
+    "_top": 0,
+    "_bottom": 110,
     "_horizontalCenter": 0,
-    "_verticalCenter": 71.94799999999998,
+    "_verticalCenter": 0,
     "_isAbsLeft": true,
     "_isAbsRight": true,
     "_isAbsTop": true,
@@ -6012,14 +6012,14 @@
     "_isAbsHorizontalCenter": true,
     "_isAbsVerticalCenter": true,
     "_originalWidth": 100,
-    "_originalHeight": 300,
+    "_originalHeight": 100,
     "_alignMode": 2,
     "_lockFlags": 0,
     "_id": ""
   },
   {
     "__type__": "cc.CompPrefabInfo",
-    "fileId": "4dDc0+apdNPrjk0bxsb5yf"
+    "fileId": "6d6l1qXbRM3alP2Uq/Ylu4"
   },
   {
     "__type__": "cc.Layout",
@@ -6029,11 +6029,11 @@
     "node": {
       "__id__": 348
     },
-    "_enabled": false,
+    "_enabled": true,
     "__prefab": {
       "__id__": 354
     },
-    "_resizeMode": 1,
+    "_resizeMode": 0,
     "_layoutType": 1,
     "_cellSize": {
       "__type__": "cc.Size",
@@ -6041,11 +6041,11 @@
       "height": 40
     },
     "_startAxis": 0,
-    "_paddingLeft": 0,
-    "_paddingRight": 0,
+    "_paddingLeft": 10,
+    "_paddingRight": 10,
     "_paddingTop": 0,
     "_paddingBottom": 0,
-    "_spacingX": 4.7,
+    "_spacingX": 5,
     "_spacingY": 0,
     "_verticalDirection": 1,
     "_horizontalDirection": 0,
@@ -6057,7 +6057,7 @@
   },
   {
     "__type__": "cc.CompPrefabInfo",
-    "fileId": "81yCxsR/BPCro5/jgovbJu"
+    "fileId": "986NWAVihCn4rQg8WZ0eck"
   },
   {
     "__type__": "cc.PrefabInfo",
@@ -6067,7 +6067,7 @@
     "asset": {
       "__id__": 0
     },
-    "fileId": "f2mrMK3fBJT4tB+8JEKln0",
+    "fileId": "52iIpQHPNPd56azk49eqsK",
     "instance": null,
     "targetOverrides": null,
     "nestedPrefabInstanceRoots": null
@@ -18390,7 +18390,7 @@
       "__id__": 348
     },
     "cardPrefab": {
-      "__uuid__": "8aaff904-8c27-4173-9716-7161893b336e",
+      "__uuid__": "f2f9a3e0-d0f5-46f4-84bd-dd54c2248470",
       "__expectedType__": "cc.Prefab"
     },
     "cards_chou": {
@@ -18405,8 +18405,12 @@
     "showHeros": {
       "__id__": 924
     },
-    "herosPanNode": null,
-    "herosBoxNode": null,
+    "herosPanNode": {
+      "__id__": 227
+    },
+    "herosBoxNode": {
+      "__id__": 247
+    },
     "heroPrefab": null,
     "showEquips": {
       "__id__": 953
@@ -18424,9 +18428,16 @@
     "showSkills": {
       "__id__": 985
     },
-    "skillPanNode": null,
-    "skillBoxNode": null,
-    "skillPrefab": null,
+    "skillPanNode": {
+      "__id__": 621
+    },
+    "skillBoxNode": {
+      "__id__": 662
+    },
+    "skillPrefab": {
+      "__uuid__": "78a5b2d1-a34b-4190-895d-7d0aa22037cc",
+      "__expectedType__": "cc.Prefab"
+    },
     "showShop": {
       "__id__": 1014
     },