Problem: floating panels lived inside the main window only, so on a
two-screen setup no panel could go onto the second monitor (#486).
Fix: panel menu > Move Panel to New Window (and the agent/control command
`window.panelWindow {panel, window?}`) undocks the panel if needed and shows
its floating group in a native egui viewport the user can drag to any screen;
Move Panel to Main Window or closing the window brings it back. The window's
place and size are kept in the workspace (sanitised against hostile values)
and restored on the next start. Browser and test builds, which embed
viewports, show it as an in-app window.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Progress docs per craftrules standards/progress-docs.md: target-app parity, gaps, roadmap with alpha gate, readiness by audience (full / mainstream / essentials) with Opus 5.5 hours, and feature, format, hardware, UI and localization parity docs.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
