feat: refactor API key configuration and enhance application initialization

- Renamed `check_environment` to `check_api_key_configured` for clarity, simplifying the API key validation logic.
- Removed the blocking behavior of the API key check during application startup, allowing the app to run while providing a prompt for configuration.
- Updated `LocalAgentApp` to accept an `api_configured` parameter, enabling conditional messaging for API key setup.
- Enhanced the `SandboxRunner` to support backup management and improved execution result handling with detailed metrics.
- Integrated data governance strategies into the `HistoryManager`, ensuring compliance and improved data management.
- Added privacy settings and metrics tracking across various components to enhance user experience and application safety.

main.py

@@ -50,37 +50,10 @@ load_dotenv(ENV_PATH)
 from app.agent import LocalAgentApp
 
 
-def check_environment() -> bool:
-    """检查运行环境"""
+def check_api_key_configured() -> bool:
+    """检查 API Key 是否已配置"""
     api_key = os.getenv("LLM_API_KEY")
-    
-    if not api_key or api_key == "your_api_key_here":
-        print("=" * 50)
-        print("错误: 未配置 LLM API Key")
-        print("=" * 50)
-        print()
-        print("请按以下步骤配置:")
-        print("1. 复制 .env.example 为 .env")
-        print("2. 在 .env 中设置 LLM_API_KEY=你的API密钥")
-        print()
-        print("获取 API Key: https://siliconflow.cn")
-        print("=" * 50)
-        
-        # 显示 GUI 错误提示
-        root = tk.Tk()
-        root.withdraw()
-        messagebox.showerror(
-            "配置错误",
-            "未配置 LLM API Key\n\n"
-            "请按以下步骤配置:\n"
-            "1. 复制 .env.example 为 .env\n"
-            "2. 在 .env 中设置 LLM_API_KEY=你的API密钥\n\n"
-            "获取 API Key: https://siliconflow.cn"
-        )
-        root.destroy()
-        return False
-    
-    return True
+    return api_key and api_key != "your_api_key_here"
 
 
 def setup_workspace():
@@ -100,10 +73,6 @@ def main():
     print("LocalAgent - Windows 本地 AI 执行助手")
     print("=" * 50)
     
-    # 检查环境
-    if not check_environment():
-        sys.exit(1)
-    
     # 创建工作目录
     workspace = setup_workspace()
     
@@ -114,8 +83,13 @@ def main():
     print(f"代码目录: {workspace / 'codes'}")
     print("=" * 50)
     
-    # 启动应用
-    app = LocalAgentApp(PROJECT_ROOT)
+    # 检查 API Key 是否配置（不阻止启动，只传递状态）
+    api_configured = check_api_key_configured()
+    if not api_configured:
+        print("提示: 未配置 API Key，请在应用内点击「设置」进行配置")
+    
+    # 启动应用（传递 API 配置状态）
+    app = LocalAgentApp(PROJECT_ROOT, api_configured=api_configured)
     app.run()