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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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11
apps/app_seeds/test/db/schema/schema.dart
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@ -9,6 +9,9 @@ import 'schema_v2.dart' as v2;
import 'schema_v3.dart' as v3;
import 'schema_v4.dart' as v4;
import 'schema_v5.dart' as v5;
import 'schema_v6.dart' as v6;
import 'schema_v7.dart' as v7;
import 'schema_v8.dart' as v8;
class GeneratedHelper implements SchemaInstantiationHelper {
@override
@ -24,10 +27,16 @@ class GeneratedHelper implements SchemaInstantiationHelper {
return v4.DatabaseAtV4(db);
case 5:
return v5.DatabaseAtV5(db);
case 6:
return v6.DatabaseAtV6(db);
case 7:
return v7.DatabaseAtV7(db);
case 8:
return v8.DatabaseAtV8(db);
default:
throw MissingSchemaException(version, versions);
}
}
static const versions = const [1, 2, 3, 4, 5];
static const versions = const [1, 2, 3, 4, 5, 6, 7, 8];
}