fix: resolve CI/CD workflow and linting issues

src/mcp_server_cli/main.py

@@ -1,16 +1,14 @@
 """Command-line interface for MCP Server CLI using Click."""
 
-import sys
 import os
 from pathlib import Path
 from typing import Optional
-import logging
 
 import click
 from click.core import Context
 
-from mcp_server_cli.config import ConfigManager, load_config_from_path, create_config_template
-from mcp_server_cli.server import run_server, create_app
+from mcp_server_cli.config import ConfigManager, create_config_template, load_config_from_path
+from mcp_server_cli.server import run_server
 from mcp_server_cli.tools import FileTools, GitTools, ShellTools
 
 
@@ -152,7 +150,6 @@ def config_show(ctx: Context):
     if config_path:
         try:
             config = load_config_from_path(config_path)
-            import json
             click.echo(config.model_dump_json(indent=2))
             return
         except Exception as e:
@@ -160,7 +157,6 @@ def config_show(ctx: Context):
 
     config_manager = ConfigManager()
     default_config = config_manager.generate_default_config()
-    import json
     click.echo("Default configuration:")
     click.echo(default_config.model_dump_json(indent=2))