Pulls the three logo variants from main into the working branch under the
project folder. Promotes 'Black logo new1.png' (largest, latest variant) to
the canonical name volcan_logo_master.png. Moves the remaining files into
assets/archive/ so nothing is lost:
- volan lgo black.png (alt black variant)
- volcan logo png.png (white-background variant, kept as alt option)
- index.html (1-byte stub from the original main branch)
Claude