test(app): add geocoding and restaurant card coverage

test/unit/presentation/providers/restaurant_provider_test.dart

@@ -177,7 +177,7 @@ void main() {
           Restaurant(
             id: '1',
             name: '김치찌개',
-            category: 'korean',
+            category: '한식',
             subCategory: '한식',
             roadAddress: '서울시',
             jibunAddress: '서울시',
@@ -190,7 +190,7 @@ void main() {
           Restaurant(
             id: '2',
             name: '스시',
-            category: 'japanese',
+            category: '일식',
             subCategory: '일식',
             roadAddress: '서울시',
             jibunAddress: '서울시',
@@ -208,10 +208,14 @@ void main() {
 
         // Act - 카테고리 필터 설정
         container.read(selectedCategoryProvider.notifier).state = '한식';
+        container.read(searchQueryProvider.notifier).state = '김치';
+        final filtered = await container.read(
+          filteredRestaurantsProvider.future,
+        );
 
         // Assert
-        // filteredRestaurantsProvider는 StreamProvider이므로 실제 테스트에서는
-        // 비동기 처리가 필요함
+        expect(filtered.length, 1);
+        expect(filtered.first.name, '김치찌개');
       },
     );
 
@@ -257,5 +261,69 @@ void main() {
         expect(result.first.name, '가까운 맛집');
       },
     );
+
+    test('categoriesProvider emits sorted unique categories', () async {
+      // Arrange
+      final restaurants = [
+        Restaurant(
+          id: '1',
+          name: '카테고리1',
+          category: '양식',
+          subCategory: '파스타',
+          roadAddress: '서울시',
+          jibunAddress: '서울시',
+          latitude: 0,
+          longitude: 0,
+          source: DataSource.USER_INPUT,
+          createdAt: DateTime.now(),
+          updatedAt: DateTime.now(),
+        ),
+        Restaurant(
+          id: '2',
+          name: '카테고리2',
+          category: '한식',
+          subCategory: '찌개',
+          roadAddress: '서울시',
+          jibunAddress: '서울시',
+          latitude: 0,
+          longitude: 0,
+          source: DataSource.USER_INPUT,
+          createdAt: DateTime.now(),
+          updatedAt: DateTime.now(),
+        ),
+        Restaurant(
+          id: '3',
+          name: '카테고리3',
+          category: '한식',
+          subCategory: '비빔밥',
+          roadAddress: '서울시',
+          jibunAddress: '서울시',
+          latitude: 0,
+          longitude: 0,
+          source: DataSource.USER_INPUT,
+          createdAt: DateTime.now(),
+          updatedAt: DateTime.now(),
+        ),
+      ];
+
+      when(
+        mockRepository.watchRestaurants(),
+      ).thenAnswer((_) => Stream.value(restaurants));
+
+      final categoriesContainer = ProviderContainer(
+        overrides: [
+          restaurantListProvider.overrideWith(
+            (ref) => Stream.value(restaurants),
+          ),
+        ],
+      );
+
+      final categories = await categoriesContainer
+          .read(categoriesProvider.stream)
+          .first;
+
+      expect(categories, ['양식', '한식']);
+      categoriesContainer.dispose();
+    });
   });
 }