Vault Folder Upload Improvements & Bug Fixes

Improvements

• We've fixed the vault folder upload progress bar not updating during uploads—it now shows real-time progress instead of jumping from 0% to complete #vault-progress
• We've fixed the upload modal not closing after successful folder uploads due to a race condition with file record creation #vault-modal
• We've fixed cloud-synced files being rejected—files from OneDrive, Dropbox, and iCloud now upload correctly #vault-cloud
• We've improved the folder upload completion screen with clear success, partial success, and failure states including specific error details #vault-completion
• We've improved unsupported file handling with an allowlist approach that shows clear reasons why certain files can't be uploaded before the upload starts #vault-filtering