yushen 423aa38888 feat(upload): add file upload UI — avatar, editor paste/drop, attachments ... - Add uploadFile method to ApiClient (FormData + 401 handling) - Add useFileUpload hook with client-side validation - ActorAvatar renders actual avatar images with fallback to initials - Account settings: replace URL input with clickable avatar upload - RichTextEditor: add Image extension, paste/drop/insertFile support - Markdown renderer: add img component for uploaded images - CommentInput & ReplyInput: add paperclip button for file attachments - Issue description: paste/drop file upload support Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>		2026-03-31 15:17:54 +08:00
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web	feat(upload): add file upload UI — avatar, editor paste/drop, attachments	2026-03-31 15:17:54 +08:00