feat: Add search/filter bar to admin cars page

- Backend: Add search (car name/plate number), color, year filters to GET /api/cars
- Frontend: Add filter bar with car name/plate, color, year range inputs
- Clear button resets all filters

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

backend/app/api/cars.py

@@ -64,6 +64,8 @@ def get_cars(
     price_max: Optional[int] = None,
     mileage_max: Optional[int] = None,
     fuel: Optional[str] = None,
+    color: Optional[str] = None,
+    search: Optional[str] = None,
     status: Optional[str] = None,
     is_displayed: Optional[bool] = None,
     admin: bool = Query(False, description="Admin mode - show all cars"),
@@ -85,6 +87,14 @@ def get_cars(
     if is_displayed is not None and admin:
         base_query = base_query.filter(Car.is_displayed == is_displayed)
 
+    # 통합 검색 (차량번호, 차량명)
+    if search:
+        search_term = f"%{search}%"
+        base_query = base_query.filter(
+            (Car.car_number.ilike(search_term)) |
+            (Car.car_name.ilike(search_term))
+        )
+
     if maker_id:
         base_query = base_query.filter(Car.maker_id == maker_id)
     if model_id:
@@ -101,6 +111,8 @@ def get_cars(
         base_query = base_query.filter(Car.mileage <= mileage_max)
     if fuel:
         base_query = base_query.filter(Car.fuel == fuel)
+    if color:
+        base_query = base_query.filter(Car.color.ilike(f"%{color}%"))
 
     total = base_query.count()
 

frontend/src/app/admin/cars/page.tsx

@@ -153,6 +153,12 @@ export default function CarsAdminPage() {
   const [hasBannerChanges, setHasBannerChanges] = useState(false); // 변경사항 있는지
   const [updatingBanners, setUpdatingBanners] = useState(false); // 업데이트 중
 
+  // Local cars filter state
+  const [localFilterSearch, setLocalFilterSearch] = useState('');
+  const [localFilterColor, setLocalFilterColor] = useState('');
+  const [localFilterYearMin, setLocalFilterYearMin] = useState('');
+  const [localFilterYearMax, setLocalFilterYearMax] = useState('');
+
   // All Cars (public view) state
   const [allCars, setAllCars] = useState<LocalCar[]>([]);
   const [allCarsLoading, setAllCarsLoading] = useState(false);
@@ -464,10 +470,19 @@ export default function CarsAdminPage() {
     }
   };
 
-  const loadLocalCars = async (page = 1, preserveBannerState = false) => {
+  const loadLocalCars = async (page = 1, preserveBannerState = false, overrideFilters?: { search?: string; color?: string; yearMin?: string; yearMax?: string }) => {
     setLocalLoading(true);
     try {
-      const { data } = await api.get('/cars', { params: { page, page_size: 100, admin: true } });
+      const filterParams: any = { page, page_size: 100, admin: true };
+      const s = overrideFilters?.search ?? localFilterSearch;
+      const c = overrideFilters?.color ?? localFilterColor;
+      const yMin = overrideFilters?.yearMin ?? localFilterYearMin;
+      const yMax = overrideFilters?.yearMax ?? localFilterYearMax;
+      if (s) filterParams.search = s;
+      if (c) filterParams.color = c;
+      if (yMin) filterParams.year_min = parseInt(yMin);
+      if (yMax) filterParams.year_max = parseInt(yMax);
+      const { data } = await api.get('/cars', { params: filterParams });
       const cars: LocalCar[] = data.cars || [];
 
       // 배너 목록도 함께 로드 (순서 정보 포함) - 실패해도 차량 목록은 표시
@@ -1562,6 +1577,74 @@ export default function CarsAdminPage() {
       {/* Local Cars Tab */}
       {activeTab === 'local' && (
         <div className="bg-white rounded-xl shadow-sm p-6">
+          {/* Filter Bar */}
+          <div className="bg-gray-50 rounded-lg p-4 mb-4">
+            <form onSubmit={(e) => { e.preventDefault(); setLocalPage(1); loadLocalCars(1); }} className="flex flex-wrap gap-3 items-end">
+              <div className="flex-1 min-w-[200px]">
+                <label className="block text-xs font-medium text-gray-500 mb-1">Car Name / Plate Number</label>
+                <input
+                  type="text"
+                  value={localFilterSearch}
+                  onChange={(e) => setLocalFilterSearch(e.target.value)}
+                  placeholder="NX, 286소9799..."
+                  className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:ring-2 focus:ring-primary-500 focus:border-transparent"
+                />
+              </div>
+              <div className="w-32">
+                <label className="block text-xs font-medium text-gray-500 mb-1">Color</label>
+                <input
+                  type="text"
+                  value={localFilterColor}
+                  onChange={(e) => setLocalFilterColor(e.target.value)}
+                  placeholder="검정, 흰색..."
+                  className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:ring-2 focus:ring-primary-500 focus:border-transparent"
+                />
+              </div>
+              <div className="w-24">
+                <label className="block text-xs font-medium text-gray-500 mb-1">Year From</label>
+                <input
+                  type="number"
+                  value={localFilterYearMin}
+                  onChange={(e) => setLocalFilterYearMin(e.target.value)}
+                  placeholder="2020"
+                  className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:ring-2 focus:ring-primary-500 focus:border-transparent"
+                />
+              </div>
+              <div className="w-24">
+                <label className="block text-xs font-medium text-gray-500 mb-1">Year To</label>
+                <input
+                  type="number"
+                  value={localFilterYearMax}
+                  onChange={(e) => setLocalFilterYearMax(e.target.value)}
+                  placeholder="2025"
+                  className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:ring-2 focus:ring-primary-500 focus:border-transparent"
+                />
+              </div>
+              <button
+                type="submit"
+                className="px-4 py-2 bg-primary-600 text-white rounded-lg hover:bg-primary-700 text-sm font-medium"
+              >
+                Search
+              </button>
+              {(localFilterSearch || localFilterColor || localFilterYearMin || localFilterYearMax) && (
+                <button
+                  type="button"
+                  onClick={() => {
+                    setLocalFilterSearch('');
+                    setLocalFilterColor('');
+                    setLocalFilterYearMin('');
+                    setLocalFilterYearMax('');
+                    setLocalPage(1);
+                    loadLocalCars(1, false, { search: '', color: '', yearMin: '', yearMax: '' });
+                  }}
+                  className="px-4 py-2 border border-gray-300 text-gray-600 rounded-lg hover:bg-gray-100 text-sm"
+                >
+                  Clear
+                </button>
+              )}
+            </form>
+          </div>
+
           <div className="flex justify-between items-center mb-4">
             <h2 className="text-lg font-semibold text-gray-800">
               Imported Cars ({localTotal} total)