feat(block1): inventory walking skeleton + first quick-add slice

Stand up the Tanemaki monorepo and the first end-to-end vertical slice of
Block 1 (offline, encrypted inventory): add a seed → see it in a categorized,
searchable list → it persists → reopen and it's still there.

Architecture (state management like G1nkgo, adapted to Tane's reality):
- flutter_bloc (Cubit-first), but the encrypted Drift DB is the single source
  of truth; cubits stream from repositories (no hydrated_bloc/Hive, which would
  write plaintext at rest).
- get_it composition root; go_router; slang i18n (ES/EN, Weblate-friendly JSON).

Workspace & core:
- pub workspace: packages/commons_core (pure Dart) + apps/app_seeds (Flutter).
- commons_core primitives: UUIDv7 IdGen, Hybrid Logical Clock, Quantity value
  type (+ plant-aware QuantityKind), IdentityService root-seed stub.

Data & security:
- Drift schemaVersion=1 with all 10 Block-1 tables + common CRDT columns
  (HLC updated_at, last_author, tombstones); Movement append-only.
- SQLCipher via an injectable executor that refuses to open a plaintext DB;
  DB key + root seed in the OS keystore (separate secrets).
- Exported drift_schema_v1.json + migration scaffold.

Tests (near-TDD; nothing merges without tests):
- commons_core units (24), Drift migration test, "no plaintext at rest"
  security guard (runs where SQLCipher is present, skips otherwise),
  repository, widget, full quick-add flow, file-reopen persistence, and a
  no-hardcoded-strings i18n guard. GitLab CI: format + analyze + test + coverage.

Follow-on Block-1 stories (item detail/edit, species catalog, germination UI)
and all of Block 2 remain out of scope.

apps/app_seeds/lib/ui/quantity_kind_l10n.dart

@@ -0,0 +1,47 @@
+import 'package:commons_core/commons_core.dart';
+
+import '../i18n/strings.g.dart';
+
+/// Localized display label for a [QuantityKind]. The enum name is the stable
+/// storage key; the label is always resolved through i18n (never hardcoded).
+String quantityKindLabel(Translations t, QuantityKind kind) {
+  final q = t.quantityKind;
+  switch (kind) {
+    case QuantityKind.aFew:
+      return q.aFew;
+    case QuantityKind.some:
+      return q.some;
+    case QuantityKind.plenty:
+      return q.plenty;
+    case QuantityKind.handful:
+      return q.handful;
+    case QuantityKind.pinch:
+      return q.pinch;
+    case QuantityKind.jar:
+      return q.jar;
+    case QuantityKind.packet:
+      return q.packet;
+    case QuantityKind.cob:
+      return q.cob;
+    case QuantityKind.head:
+      return q.head;
+    case QuantityKind.pod:
+      return q.pod;
+    case QuantityKind.ear:
+      return q.ear;
+    case QuantityKind.fruit:
+      return q.fruit;
+    case QuantityKind.bulb:
+      return q.bulb;
+    case QuantityKind.tuber:
+      return q.tuber;
+    case QuantityKind.seedHead:
+      return q.seedHead;
+    case QuantityKind.bunch:
+      return q.bunch;
+    case QuantityKind.grams:
+      return q.grams;
+    case QuantityKind.count:
+      return q.count;
+  }
+}