5 new core.Service packages extracted from pkg/display:
clipboard, dialog, notification, environment, screen.
Each with Platform interface insulation, full IPC messages,
and WS bridge integration for the TypeScript SDK.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Wire go-config into display orchestrator to replace the in-memory
loadConfig() stub with real .core/gui/config.yaml file loading and
persistence via handleConfigTask.
Co-Authored-By: Virgil <virgil@lethean.io>