forked from fa/breadcrumb-the-shire
Replace bare <input type="file"> across all upload locations with a card-based dropzone component via shared partial. Three visual states: current server file (thumbnail + Replace/Delete), empty dropzone, and pending file preview (local FileReader thumbnail + metadata). Delete actions use data-confirm-message for confirmation dialog. Centralized as templates/partials/app-file-upload.phtml to prevent markup drift — documented as deliberate exception to plain-HTML inputs convention in CLAUDE.md and developer checklist. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>