Add Cut, Copy, Copy Text from Picture, Save As, and Restore to Original Size to picture menus. Offer PNG beside the lossless clip on desktop and web, plus DIB for Windows readers.

Normalize floating pictures pasted into outlines and follow images in newly created outlines so they save and draw immediately. Cover clipboard alpha, picture paste, and resize/cut undo.

Refs #80

Assisted-by: gpt-6.1-sol