Update CircleCI and LogCLI tools to open_source ecosystem

[plusplusoneplusplus]

Summary

This PR updates the ecosystem configuration for CircleCI and LogCLI tools to use the open_source ecosystem and non_windows OS type.

Changes Made

Tool Updates

• CircleCI Tool (plugins/circleci/circleci_tool.py):

  • Changed @register_tool(ecosystem="general", os_type="all") to @register_tool(ecosystem="open_source", os_type="non_windows")

• LogCLI Tool (plugins/logcli/logcli_tool.py):

  • Changed @register_tool to @register_tool(ecosystem="open_source", os_type="non_windows")

Configuration Updates

• Environment Template (config/env.template):
  • Updated ecosystem documentation to include open_source in available ecosystems list
  • Updated example configuration comment

Development Context

• Code Editor: Cursor
• Branch: feature/update-tools-to-open-source-ecosystem
• Commit: 3360cf7

Testing

• Changes are configuration-only and don't affect core functionality
• Tools will now be filtered based on the new ecosystem and OS type settings

Impact

• Tools will be available when MCP_ECOSYSTEMS includes open_source
• Tools will be filtered out on Windows systems when MCP_OS_TYPE filtering is enabled
• No breaking changes to existing functionality