Let GMs manage and show images over the scene from the editor and control panel, with zoom tools, help docs, and full ru/en i18n.
Co-authored-by: Cursor <cursoragent@cursor.com>
Add darkenScene with Opening brush in presentation, persist reveal strokes per scene during a session, and close projects properly on return to home. Harden dnd asset streaming to avoid Windows main-process crashes when reopening projects.
Co-authored-by: Cursor <cursoragent@cursor.com>