chat-ui

a11eb8e8 - Replace welcome modal video with GIF for mobile compatibility (#2011)

Replace welcome modal video with GIF for mobile compatibility (#2011) Replace welcome modal video with optimized GIF for mobile compatibility Videos with autoplay don't work reliably on mobile browsers. This change replaces the external CDN video with a locally hosted animated GIF that works consistently across all devices. - Created 2x retina resolution GIF (840x384, renders at 420x192) - Optimized to 1.08MB with 24-color palette - 20 frames at 10fps for smooth 2-second loop - Updated WelcomeModal to use img tag instead of video - Removes dependency on external CDN Co-authored-by: Claude <noreply@anthropic.com>