The old import scanned a hardcoded Seafile CloudStorage path that only
worked on one specific machine. Replaced with a standard <input type=file>
browser picker that reads the .docx as base64 and uploads it directly, so
the feature works everywhere. Server endpoint now accepts either a base64
payload or the legacy path. Also fixed a crash where resetImportSection()
still referenced the removed select element, which was breaking the item
editor for all item types.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>