- Move /image-proxy to public (unauthenticated) route so CachedNetworkImage
can fetch proxied GIFs without Bearer token (fixes 401 errors)
- Expand image proxy SSRF allowlist to include i.imgur.com + media.giphy.com
- Broaden GIF filter in gif_picker: accept i.redd.it, preview.redd.it,
i.imgur.com URLs (not just .gif extension) so Reddit posts actually show
- Change GIF search hint to 'Search GIFs…' (no subreddit mention)
- Add i.imgur.com + media.giphy.com to client-side needsProxy() list
- Create lib/widgets/composer/composer_bar.dart — single ComposerBar widget
with ComposerConfig presets (publicPost/comment/threadReply/chat/privatePost)
that handles text, GIF picker, image picker, upload, and send button uniformly
- Apply ComposerBar to: group feed posts, group feed comments sheet,
group thread reply bar, quips comment sheet, group chat bar
- Remove all duplicate TextField+send-button+media-button implementations
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>