fix(inventory-ui): 필터·창고 선택 상호작용 정비

- 입고/출고/대여 상태·대여구분 드롭다운에 제네릭 타입을 명시해 null 허용 옵션에서도 SDK 경고를 제거\n- 입고 목록 include 라벨에 customers→'고객 포함'을 추가해 UI 설명을 통일\n- WarehouseSelectField가 선택된 라벨과 동일한 검색어일 때 전체 옵션을 복원하고 suggestions를 초기화하도록 로직을 보강\n- FilterBar의 필터 적용 배지를 윤곽 스타일로 교체하고 테마 색상 대비를 조정\n- DatePicker 버튼을 outline 버튼 자체에서 정렬/아이콘 슬롯으로 구성해 긴 날짜 라벨이 잘리지 않도록 개선\n- 필터 배지/날짜 버튼 UI 변경에 맞춰 인벤토리 요약 골든 이미지를 갱신\n- flutter analyze, flutter test로 회귀를 검증

lib/features/inventory/inbound/presentation/pages/inbound_page.dart

@@ -396,12 +396,12 @@ class _InboundPageState extends State<InboundPage> {
                 setState(() => _pendingStatus = value);
               },
               options: [
-                const ShadOption(
+                ShadOption<String?>(
                   value: null,
                   child: Text(InboundTableSpec.allStatusLabel),
                 ),
                 for (final option in _statusOptions)
-                  ShadOption(value: option, child: Text(option)),
+                  ShadOption<String?>(value: option, child: Text(option)),
               ],
             ),
           ),

lib/features/inventory/inbound/presentation/specs/inbound_table_spec.dart

@@ -75,6 +75,8 @@ class InboundTableSpec {
     switch (value) {
       case 'lines':
         return '상세정보 포함';
+      case 'customers':
+        return '고객 포함';
       default:
         return value;
     }

lib/features/inventory/outbound/presentation/pages/outbound_page.dart

@@ -481,12 +481,12 @@ class _OutboundPageState extends State<OutboundPage> {
                   Text(value ?? OutboundTableSpec.allStatusLabel),
               onChanged: (value) => setState(() => _pendingStatus = value),
               options: [
-                const ShadOption(
+                ShadOption<String?>(
                   value: null,
                   child: Text(OutboundTableSpec.allStatusLabel),
                 ),
                 for (final option in _statusOptions)
-                  ShadOption(value: option, child: Text(option)),
+                  ShadOption<String?>(value: option, child: Text(option)),
               ],
             ),
           ),

lib/features/inventory/rental/presentation/pages/rental_page.dart

@@ -438,12 +438,12 @@ class _RentalPageState extends State<RentalPage> {
                   Text(value ?? RentalTableSpec.allStatusLabel),
               onChanged: (value) => setState(() => _pendingStatus = value),
               options: [
-                const ShadOption(
+                ShadOption<String?>(
                   value: null,
                   child: Text(RentalTableSpec.allStatusLabel),
                 ),
                 for (final option in _statusOptions)
-                  ShadOption(value: option, child: Text(option)),
+                  ShadOption<String?>(value: option, child: Text(option)),
               ],
             ),
           ),
@@ -456,12 +456,12 @@ class _RentalPageState extends State<RentalPage> {
                   Text(value ?? RentalTableSpec.allRentalTypeLabel),
               onChanged: (value) => setState(() => _pendingRentalType = value),
               options: [
-                const ShadOption(
+                ShadOption<String?>(
                   value: null,
                   child: Text(RentalTableSpec.allRentalTypeLabel),
                 ),
                 for (final option in RentalTableSpec.rentalTypes)
-                  ShadOption(value: option, child: Text(option)),
+                  ShadOption<String?>(value: option, child: Text(option)),
               ],
             ),
           ),

lib/features/inventory/shared/widgets/warehouse_select_field.dart

@@ -230,6 +230,19 @@ class _InventoryWarehouseSelectFieldState
       return;
     }
     final keyword = _controller.text.trim();
+    final selectedLabel = _selectedLabel;
+    final matchesSelectedLabel =
+        selectedLabel != null && keyword == selectedLabel;
+    if (matchesSelectedLabel) {
+      _debounce?.cancel();
+      setState(() {
+        _isSearching = false;
+        _suggestions
+          ..clear()
+          ..addAll(_availableOptions(_initialOptions));
+      });
+      return;
+    }
     if (keyword.isEmpty) {
       _debounce?.cancel();
       setState(() {
@@ -328,6 +341,14 @@ class _InventoryWarehouseSelectFieldState
     return '${option.name} (${option.code})';
   }
 
+  String? get _selectedLabel {
+    final selected = _selected;
+    if (selected == null) {
+      return null;
+    }
+    return selected.id == -1 ? widget.allLabel : _displayLabel(selected);
+  }
+
   Widget _buildLoadingInput() {
     return Stack(
       alignment: Alignment.centerLeft,
@@ -363,11 +384,13 @@ class _InventoryWarehouseSelectFieldState
       textEditingController: _controller,
       focusNode: _focusNode,
       optionsBuilder: (textEditingValue) {
-        if (textEditingValue.text.trim().isEmpty) {
-          if (_suggestions.isEmpty) {
-            return _availableOptions(_initialOptions);
-          }
-          return _suggestions;
+        final keyword = textEditingValue.text.trim();
+        final selectedLabel = _selectedLabel;
+        final shouldShowAll =
+            keyword.isEmpty ||
+            (selectedLabel != null && keyword == selectedLabel);
+        if (shouldShowAll) {
+          return _availableOptions(_initialOptions);
         }
         return _suggestions;
       },

lib/widgets/components/filter_bar.dart

@@ -111,16 +111,15 @@ class FilterBar extends StatelessWidget {
     FilterBarActionConfig config,
   ) {
     final theme = ShadTheme.of(context);
-    if (config.hasPendingChanges) {
-      return ShadBadge(
-        child: Padding(
-          padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
-          child: Text('미적용 변경', style: theme.textTheme.small),
-        ),
-      );
-    }
     if (config.hasActiveFilters) {
+      final badgeColor = theme.colorScheme.primary;
       return ShadBadge.outline(
+        foregroundColor: badgeColor,
+        backgroundColor: badgeColor.withValues(alpha: 0.08),
+        hoverBackgroundColor: badgeColor.withValues(alpha: 0.12),
+        shape: StadiumBorder(
+          side: BorderSide(color: badgeColor.withValues(alpha: 0.4)),
+        ),
         child: Padding(
           padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
           child: Text('필터 적용됨', style: theme.textTheme.small),

lib/widgets/components/superport_date_picker.dart

@@ -31,6 +31,8 @@ class SuperportDatePickerButton extends StatelessWidget {
     final format = dateFormat ?? intl.DateFormat('yyyy-MM-dd');
     final displayText = value != null ? format.format(value!) : placeholder;
     return ShadButton.outline(
+      mainAxisAlignment: MainAxisAlignment.spaceBetween,
+      gap: 8,
       onPressed: !enabled
           ? null
           : () async {
@@ -49,14 +51,13 @@ class SuperportDatePickerButton extends StatelessWidget {
                 onChanged(picked);
               }
             },
-      child: Row(
-        mainAxisAlignment: MainAxisAlignment.spaceBetween,
-        mainAxisSize: MainAxisSize.min,
-        children: [
-          Text(displayText),
-          const SizedBox(width: 8),
-          const Icon(lucide.LucideIcons.calendar, size: 16),
-        ],
+      trailing: const Icon(lucide.LucideIcons.calendar, size: 16),
+      child: Text(
+        displayText,
+        maxLines: 1,
+        overflow: TextOverflow.ellipsis,
+        softWrap: false,
+        textAlign: TextAlign.left,
       ),
     );
   }
@@ -92,6 +93,8 @@ class SuperportDateRangePickerButton extends StatelessWidget {
         ? placeholder
         : '${format.format(value!.start)} ~ ${format.format(value!.end)}';
     return ShadButton.outline(
+      gap: 8,
+      mainAxisAlignment: MainAxisAlignment.start,
       onPressed: !enabled
           ? null
           : () async {
@@ -111,14 +114,13 @@ class SuperportDateRangePickerButton extends StatelessWidget {
                 onChanged(picked);
               }
             },
-      child: Row(
-        mainAxisAlignment: MainAxisAlignment.center,
-        mainAxisSize: MainAxisSize.min,
-        children: [
-          const Icon(lucide.LucideIcons.calendar, size: 16),
-          const SizedBox(width: 8),
-          Flexible(child: Text(label, overflow: TextOverflow.ellipsis)),
-        ],
+      leading: const Icon(lucide.LucideIcons.calendar, size: 16),
+      child: Text(
+        label,
+        maxLines: 1,
+        overflow: TextOverflow.ellipsis,
+        softWrap: false,
+        textAlign: TextAlign.left,
       ),
     );
   }