Yolop 0.18.1 release

Highlights

• Named profiles can now be managed from the CLI and control plane (#698)
• Configured MCP servers are listed in the agent system prompt (#700)
• OpenRouter 402 billing pauses now guide users to wait or add credits, and validation errors are actionable (#701, #705)
• Compaction checkpoints stamp rows and trace Codex compaction (#703)

See the GitHub release and the full release notes for every pull request in this version.