SysML Export

[New]

• Implemented SysML v2 export functionality.

• Introduced automatic model backups every 10 minutes.

[Improved]

• Last backup timer now refreshes every minute.

• Improved selection handling with more robust single/multi-select (Ctrl/Shift/⌘) for canvas elements, clearer visual feedback (including for collaborative selections), and refined tree view selection.

• Redesigned Interface Legend: now collapsible, with support for creating, naming, and customizing colors for interface groups directly within the legend.

• Added tooltip to disabled Apply Changes button.

[Fixed]

• Resolved model-copy failures.

• Fixed delayed acceptance of AI-suggested changes.