feat/migrate-to-sdk
main
Replace FreeCADGui.registerEditingOverlay() with kindred_sdk.register_overlay(). Replace FreeCADGui.addOrigin()/removeOrigin() with kindred_sdk wrappers. Replace hardcoded _MOCHA dict with kindred_sdk.get_theme_tokens(). Add sdk dependency to package.xml <kindred> element.
Declares min_create_version=0.1.0, load_priority=60, pure_python=true, and documents universal overlay context.