Avatar images were rendered via /uploads/ which doesn't exist since
the S3 migration. Now the server enriches profile responses with
avatarImageUrl (presigned S3 URL) and the frontend uses it directly.
Also fixed the public profile page at /users/:id.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Selected hobby cards now use dark gray fill with inverted white
text/icon for clear visual distinction. Also fixes biome formatting
across all changed files.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replaced the one-shot initialized flag with a dirty flag that allows
the useEffect to re-sync local state from server data after a
successful save. Previously, once initialized was set to true, the
effect never ran again so avatar changes were lost on refetch.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
