Complete missing keys in the existing translations and add selectable Spanish, Brazilian Portuguese, Arabic, and Japanese resources.\n\nThe large compatibility catalogs for the new locales remain in progress.
- preserve command history colors after reopening
- remove collapsed command bar residue and split the unsaved prompt
- read system text when the drawing clipboard is empty
Refs #467
Refs #468
Refs #470
Embed debug locales and expand the WebAssembly stack so modal construction remains responsive. Keep the Options scrollbar in its own lane and refine Turkish CAD terminology.