Release v3.90.0

Added

• cratis ai install and cratis ai update register every MCP server whose profile is selected (for example cratis/playwright registers npx -y @playwright/mcp@0.0.83 --headless --isolated) in Claude Code, Copilot, Cursor, Codex and OpenCode, and remove it when the profile is deselected or on cratis ai uninstall. Entries you registered yourself are left untouched and reported as a conflict, with how to resolve it (rename or remove your entry, or set mcpServers.<id>.enabled to false in .cratis/ai.json). A selected server whose descriptor can't be used (unsupported transport, incomplete entry, invalid or duplicate id, or an unknown descriptor schema major version) is skipped with a message instead of failing the install. Pi keeps registering only Screenplay through its native extension and reports other servers as unsupported. (#410)