Release v0.11.6

[johncburns1]

Features

• Add standard payload types for eval-related agent functions along with example eval agent

Bug Fixes

• Fixed an issue where default system packages were not installed in agent containers, ensuring expected runtime dependencies are available by default.
• Managed MCP servers now take precedence over colliding entries defined in .mcp.json, preventing configuration conflicts when both sources define the same server name.
• Removed the broken Claude Code plugin integration; documentation now directs users to the MCP operator for this functionality.