Pick a GIF/WEBP/MP4/JPG from /logo-media/. This calls logo.php and updates the live header config.
This saves the architecture choice now. Next pass can wire each category to real TikTok/API/source rows.
Old logo/header note: this preview uses whatever header is inside index.html?_v=197. To bring the logo.php GIF picker/header over exactly, upload logo.php and I’ll copy that left-column media browser into this designer.