- Auto-preview the first image after a folder loads (both panels), so the
canvas isn't empty (§17.8).
- Group exports as <output_dir>/<timestamp>/<print_stem>/<garment_stem>.<ext>;
one timestamp per export run, shared across the batch (§17.9).
- Remember the last garment/print folders and reopen the picker there;
persisted via config, wired through main_window (§17.10).
- Shrink the 3 box templates further and lower them (chest placement).
- Fix: batch export ignored the chosen format/quality/output dir because the
queue never received ExportOptions. Export panel now emits
export_options_changed → queue.set_export_options (+ initial sync) (§17.11).
Docs: PRD 6.1/6.8/9, architecture 4.12, UI design 5.1, tasks.md 17.8–17.11.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>