refactor(types): 将类型定义移动到独立的types模块

将原本分散在多个文件中的TreeNode和Template类型定义集中到src/types模块中，并更新所有相关引用
修改tsconfig配置以包含新的types目录
优化IPCs中模板处理逻辑，改进文件复制和路径处理

tsconfig.json

@@ -19,7 +19,7 @@
     },
     "lib": ["esnext", "dom"]
   },
-  "include": ["src/*.ts", "src/*.d.ts", "src/renderer", "src/renderer/auto-imports.d.ts"],
+  "include": ["src/*.ts", "src/*.d.ts", "src/renderer", "src/renderer/auto-imports.d.ts", "src/types"],
   "references": [
     {
       "path": "./tsconfig.node.json"