fix: address review comments for MCP stdio command allowlist

- Remove unused pytest import from test_stdio_config.py
- Strip file extension from base_command for Windows compatibility
  (e.g., python.exe -> python) using os.path.splitext

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

lib/crewai/src/crewai/mcp/transports/stdio.py

@@ -69,6 +69,8 @@ class StdioTransport(BaseTransport):
 
         if allowed_commands is not None:
             base_command = os.path.basename(command)
+            # Strip extension for Windows compatibility (e.g., python.exe -> python)
+            base_command = os.path.splitext(base_command)[0]
             if base_command not in allowed_commands:
                 raise ValueError(
                     f"Command '{command}' is not in the allowed commands list: "

lib/crewai/tests/mcp/test_stdio_config.py

@@ -1,7 +1,5 @@
 """Tests for MCPServerStdio allowed_commands config integration."""
 
-import pytest
-
 from crewai.mcp.config import MCPServerStdio
 from crewai.mcp.transports.stdio import DEFAULT_ALLOWED_COMMANDS