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feat(inventory): photo-first drafts + on-device OCR (digitization R2+R4)

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Lower the bulk-digitization cliff with two more routes on top of the
already-landed CSV import and "save and add another":

- Photo-first drafts (capture now, catalogue later): burst-capture
  photos (camera or multi-gallery) into unnamed draft varieties, shown
  in a "to catalogue" tray, hidden from the main list until named.
  Adds Variety.isDraft (schema), addDraftVariety/watchDrafts/nameDraft,
  the triage sheet and the inventory banner.
- On-device OCR label suggestion (Tesseract, offline, no Google): a
  "Suggest name from photo" button in the naming dialog behind a
  LabelTextExtractor interface (Tesseract on Android/iOS, no-op
  elsewhere). Reads the largest print via hOCR bounding boxes, drops
  boilerplate/low-confidence noise, preprocesses (grayscale, contrast,
  upscale) and sweeps rotations (0-315 deg) so tilted packets still
  read. Bundles tessdata_fast eng+spa; validated on-device against real
  packets. The photo is written to a temp file deleted immediately in a
  finally block (the plugin needs a path) - a bounded, documented
  exception to no-plaintext-at-rest.

This commit also carries the co-developed schema evolution v5 to v8 that
shares these files (organic flag, species viability years, crop
calendar, lot provenance/abundance/preservation format, condition
checks) plus their exports/migrations and i18n.

Tests: CSV/draft/OCR unit + widget + migration green in isolation.
Note: the full widget suite currently hangs (>10 min) - under investigation.
This commit is contained in:
vjrj 2026-07-09 21:23:46 +02:00
parent 12a2ee2d64
commit 6809dc6143
89 changed files with 17141 additions and 228 deletions
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25
apps/app_seeds/lib/ui/backup_section.dart
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@ -4,9 +4,11 @@ import '../di/injector.dart';
import '../i18n/strings.g.dart';
import '../services/export_import_service.dart';
/// The three backup actions shown in Settings: export CSV, export JSON and
/// import JSON. Import asks for confirmation first (it merges into the live
/// inventory), then reports what happened in a SnackBar.
/// The backup actions shown in Settings. The primary pair — save/restore a
/// full copy — comes first; the spreadsheet list export/import is a secondary
/// convenience below. File formats (JSON/CSV) are an implementation detail and
/// never surface in the UI. Restore/import asks for confirmation first (it
/// merges into the live inventory), then reports what happened in a SnackBar.
class BackupSection extends StatelessWidget {
const BackupSection({this.service, super.key});
@ -22,23 +24,24 @@ class BackupSection extends StatelessWidget {
return Column(
children: [
ListTile(
leading: const Icon(Icons.table_view_outlined),
title: Text(t.backup.exportCsv),
subtitle: Text(t.backup.exportCsvSubtitle),
onTap: () => _runExport(context, () => _service.exportCsv()),
),
ListTile(
leading: const Icon(Icons.file_download_outlined),
leading: const Icon(Icons.save_alt_outlined),
title: Text(t.backup.exportJson),
subtitle: Text(t.backup.exportJsonSubtitle),
onTap: () => _runExport(context, () => _service.exportJson()),
),
ListTile(
leading: const Icon(Icons.file_upload_outlined),
leading: const Icon(Icons.settings_backup_restore_outlined),
title: Text(t.backup.importJson),
subtitle: Text(t.backup.importJsonSubtitle),
onTap: () => _runImport(context),
),
const Divider(),
ListTile(
leading: const Icon(Icons.table_view_outlined),
title: Text(t.backup.exportCsv),
subtitle: Text(t.backup.exportCsvSubtitle),
onTap: () => _runExport(context, () => _service.exportCsv()),
),
ListTile(
leading: const Icon(Icons.playlist_add_outlined),
title: Text(t.backup.importCsv),