refactor(common prompt,hero box): 优化弹窗绑定逻辑与英雄出售限制

1. 重构CommonPrompt的编辑器属性绑定，添加按钮节点序列化引用并优化兜底查找逻辑
2. 为英雄出售操作添加存活数量校验，场上仅1个英雄时禁止出售
3. 新增统一的存活英雄统计工具方法
4. 补充Claude工具命令配置

.claude/settings.json

@@ -16,7 +16,9 @@
       "Bash(git add *)",
       "Bash(git commit *)",
       "Bash(npm install *)",
-      "Bash(npx tsc *)"
+      "Bash(npx tsc *)",
+      "Bash(d:/game/pixelheros/extensions/pixelhero-config-editor/node_modules/.bin/tsx --version)",
+      "Bash(d:/game/pixelheros/extensions/pixelhero-config-editor/node_modules/.bin/tsx --tsconfig scripts/tsconfig.eval.json scripts/eval-heroes.ts --lv=1 --base=5011)"
     ],
     "deny": [
       "Bash(rm -rf *)",