feat: complete academic symbol lexicon heal, 2-column Cooper extraction, and updated assets

test/ogham_divination_test.dart

@@ -0,0 +1,44 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:words999/models/divination_layout.dart';
+import 'package:words999/models/divination_instructions.dart';
+import 'package:words999/services/ogham_feda_repository.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  group('Celtic Ogham Divination System Tests', () {
+    test('Ogham layouts exist with correct counts', () {
+      expect(DivinationLayouts.oghamLayouts.length, 3);
+      expect(DivinationLayouts.oghamLayouts[0].count, 1);
+      expect(DivinationLayouts.oghamLayouts[1].count, 3);
+      expect(DivinationLayouts.oghamLayouts[2].count, 5);
+    });
+
+    test('Ogham instruction is fully defined with history and rules', () {
+      final instr = DivinationInstructionsRepository.get('ogham');
+      expect(instr.id, 'ogham');
+      expect(instr.title, contains('Огам'));
+      expect(instr.icon, '᚛');
+      expect(instr.historyAndEssence.isNotEmpty, true);
+      expect(instr.physicalDiceMethod.isNotEmpty, true);
+      expect(instr.sacredRules.length, greaterThanOrEqualTo(3));
+    });
+
+    test('OghamFedaRepository loads all 20 sacred fedas', () async {
+      final repo = OghamFedaRepository();
+      await repo.init();
+      expect(repo.allFedas.length, 20);
+
+      final beith = repo.byCanonId('beith');
+      expect(beith, isNotNull);
+      expect(beith!.symbol, 'ᚁ');
+      expect(beith.name, contains('Бэйт'));
+      expect(beith.shadow.isNotEmpty, true);
+
+      final idho = repo.byCanonId('idho');
+      expect(idho, isNotNull);
+      expect(idho!.symbol, 'ᚔ');
+      expect(idho.name, contains('Идо'));
+    });
+  });
+}