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

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.

apps/app_seeds/lib/i18n/en.i18n.json

@@ -44,24 +44,24 @@
     "aboutOpen": "About Tanemaki"
   },
   "backup": {
-    "title": "Backup",
-    "exportCsv": "Export as CSV",
-    "exportCsvSubtitle": "For spreadsheets — no photos",
-    "exportJson": "Export as JSON",
-    "exportJsonSubtitle": "Complete copy, can be imported back",
-    "importJson": "Import from JSON",
-    "importJsonSubtitle": "Merge a saved copy into this inventory",
-    "importCsv": "Import from CSV",
-    "importCsvSubtitle": "Add a list from a spreadsheet",
-    "importConfirmTitle": "Import a saved copy?",
+    "title": "Backup & restore",
+    "exportJson": "Save a backup",
+    "exportJsonSubtitle": "A complete copy to keep safe, restore later or move to another device",
+    "importJson": "Restore a backup",
+    "importJsonSubtitle": "Bring a saved copy back — nothing gets duplicated",
+    "exportCsv": "Export to a spreadsheet",
+    "exportCsvSubtitle": "A simple list for Excel or LibreOffice — no photos",
+    "importCsv": "Import a list",
+    "importCsvSubtitle": "Add entries from a spreadsheet",
+    "importConfirmTitle": "Restore a backup?",
     "importConfirmBody": "Entries merge with your inventory; when the same entry exists on both sides, the newest version wins. Nothing gets duplicated.",
-    "importCsvConfirmTitle": "Import a CSV list?",
+    "importCsvConfirmTitle": "Import a list?",
     "importCsvConfirmBody": "Every row is added as a new entry. This does not merge or replace, so importing the same file twice adds it twice.",
     "importAction": "Import",
     "exportSaved": "Copy saved",
     "cancelled": "Cancelled",
     "importDone": "Imported: {added} new, {updated} updated",
-    "importCsvDone": "Imported {count} from CSV",
+    "importCsvDone": "Added {count} entries",
     "importFailed": "This file could not be read as a Tanemaki copy",
     "failed": "Something went wrong"
   },
@@ -112,7 +112,19 @@
     "empty": "No seeds yet. Tap + to add your first.",
     "noMatches": "No seeds match your filters.",
     "clearFilters": "Clear filters",
-    "uncategorized": "Uncategorized"
+    "uncategorized": "Uncategorized",
+    "needsReproductionFilter": "To regrow"
+  },
+  "draft": {
+    "capture": "Capture photos",
+    "captured": "{n} captured to catalogue",
+    "triageTitle": "To catalogue",
+    "triageCount": "{n} to catalogue",
+    "untitled": "Unnamed",
+    "nameField": "Name this seed",
+    "nameHint": "What is it?",
+    "suggestFromPhoto": "Suggest name from photo",
+    "discard": "Discard"
   },
   "quickAdd": {
     "title": "Add a seed",
@@ -151,13 +163,21 @@
     "none": "No germination tests yet.",
     "result": "{percent}%"
   },
+  "viability": {
+    "expiringSoon": "Use or reproduce this season",
+    "expiringSoonYears": "Use or reproduce this season · keeps ~{years} yr",
+    "expired": "Past typical viability — reproduce",
+    "expiredYears": "Past typical viability (~{years} yr) — reproduce"
+  },
   "editVariety": {
     "title": "Edit seed",
     "name": "Name",
     "category": "Category",
     "notes": "Notes",
     "species": "Species (from catalog)",
-    "speciesHint": "Search a species…"
+    "speciesHint": "Search a species…",
+    "organic": "Organic",
+    "organicHint": "Grown organically (eco)"
   },
   "addLot": {
     "title": "Add lot",
@@ -191,6 +211,65 @@
     "bareRoot": "Bare-root",
     "rootBall": "Root-ball"
   },
+  "provenance": {
+    "section": "Where it's from",
+    "seedsFrom": "Seeds from",
+    "seedsFromHint": "Who grew or gave them",
+    "place": "Place",
+    "placeHint": "Where they come from (with region)",
+    "addSeedsFrom": "Seeds from",
+    "addPlace": "Place"
+  },
+  "abundance": {
+    "add": "How much I have",
+    "title": "How much I have",
+    "none": "Not set",
+    "plentyToShare": "Plenty to share",
+    "enoughToShare": "Enough to share a little",
+    "enoughForMe": "Enough for me",
+    "runningLow": "Running low"
+  },
+  "cropCalendar": {
+    "add": "Crop calendar",
+    "title": "Crop calendar",
+    "sow": "Sow",
+    "transplant": "Transplant",
+    "flowering": "Flowering",
+    "fruiting": "Fruiting",
+    "seedHarvest": "Seed harvest",
+    "unset": "—"
+  },
+  "needsReproduction": {
+    "label": "To regrow this season",
+    "hint": "Grow it out before the seed runs out",
+    "badge": "To regrow"
+  },
+  "preservation": {
+    "add": "How it's kept",
+    "title": "How it's kept",
+    "none": "Unspecified",
+    "jarWithDesiccant": "Jar with drying agent",
+    "glassJar": "Glass jar",
+    "paperEnvelope": "Paper envelope",
+    "paperBag": "Paper bag",
+    "plasticBag": "Plastic bag"
+  },
+  "conditionCheck": {
+    "advanced": "Storage & seed-bank details",
+    "title": "Storage checks",
+    "add": "Add check",
+    "containers": "Jars / containers",
+    "desiccant": "Drying agent",
+    "none": "No storage checks yet.",
+    "summary": "{count} jar(s) · {state}"
+  },
+  "desiccant": {
+    "none": "None",
+    "add": "Add some",
+    "replace": "Replace it",
+    "dry": "Blue — dry",
+    "fresh": "Just renewed"
+  },
   "unit": {
     "aFew": "a few",
     "some": "some",