refactor: rename manage_menu_item to execute_menu_item and update tool examples to use async/await

We'll eventually put a section for resources

Author: msanatan

README-zh.md

@@ -45,7 +45,7 @@ MCP for Unity 作为桥梁，允许 AI 助手（如 Claude、Cursor）通过本
   * `manage_asset`: 执行资源操作（导入、创建、修改、删除等）。
   * `manage_shader`: 执行着色器 CRUD 操作（创建、读取、修改、删除）。
   * `manage_gameobject`: 管理游戏对象：创建、修改、删除、查找和组件操作。
-  * `manage_menu_item`: 列出 Unity 编辑器菜单项；检查其存在性或执行它们（例如，执行"File/Save Project"）。
+  * `execute_menu_item`: 执行 Unity 编辑器菜单项（例如，执行"File/Save Project"）。
   * `apply_text_edits`: 具有前置条件哈希和原子多编辑批次的精确文本编辑。
   * `script_apply_edits`: 结构化 C# 方法/类编辑（插入/替换/删除），具有更安全的边界。
   * `validate_script`: 快速验证（基本/标准）以在写入前后捕获语法/结构问题。

README.md

@@ -45,7 +45,7 @@ MCP for Unity acts as a bridge, allowing AI assistants (like Claude, Cursor) to
   *   `manage_asset`: Performs asset operations (import, create, modify, delete, etc.).
   *   `manage_shader`: Performs shader CRUD operations (create, read, modify, delete).
   *   `manage_gameobject`: Manages GameObjects: create, modify, delete, find, and component operations.
-  *   `manage_menu_item`: List Unity Editor menu items; and check for their existence or execute them (e.g., execute "File/Save Project").
+  *   `execute_menu_item`: Executes Unity Editor menu items (e.g., "File/Save Project").
   *   `apply_text_edits`: Precise text edits with precondition hashes and atomic multi-edit batches.
   *   `script_apply_edits`: Structured C# method/class edits (insert/replace/delete) with safer boundaries.
   *   `validate_script`: Fast validation (basic/standard) to catch syntax/structure issues before/after writes.

docs/CUSTOM_TOOLS.md

@@ -24,12 +24,12 @@ from unity_connection import send_command_with_retry
 @mcp_for_unity_tool(
     description="My custom tool that does something amazing"
 )
-def my_custom_tool(
+async def my_custom_tool(
     ctx: Context,
     param1: Annotated[str, "Description of param1"],
     param2: Annotated[int, "Description of param2"] | None = None
 ) -> dict[str, Any]:
-    ctx.info(f"Processing my_custom_tool: {param1}")
+    await ctx.info(f"Processing my_custom_tool: {param1}")
 
     # Prepare parameters for Unity
     params = {
@@ -151,11 +151,11 @@ from unity_connection import send_command_with_retry
 @mcp_for_unity_tool(
     description="Capture screenshots in Unity, saving them as PNGs"
 )
-def capture_screenshot(
+async def capture_screenshot(
     ctx: Context,
     filename: Annotated[str, "Screenshot filename without extension, e.g., screenshot_01"],
 ) -> dict[str, Any]:
-    ctx.info(f"Capturing screenshot: {filename}")
+    await ctx.info(f"Capturing screenshot: {filename}")
 
     params = {
         "action": "capture",