feat: 제품 검색에 분류 뱃지 + 도매상 재고 추가 (PostgreSQL 방어적 lazy fetch)

backend/templates/admin_products.html

@@ -725,12 +725,23 @@
             return;
         }
 
-        tbody.innerHTML = productsData.map((item, idx) => `
+        tbody.innerHTML = productsData.map((item, idx) => {
+            // 분류 뱃지 (동물약만)
+            const categoryBadge = item.category 
+                ? `<span style="display:inline-block;background:#8b5cf6;color:#fff;font-size:10px;padding:2px 5px;border-radius:3px;margin-left:4px;">${escapeHtml(item.category)}</span>` 
+                : '';
+            // 도매상 재고 표시 (동물약만)
+            const wsStock = (item.wholesaler_stock && item.wholesaler_stock > 0) 
+                ? `<span style="color:#3b82f6;font-size:11px;margin-left:4px;">(도매 ${item.wholesaler_stock})</span>` 
+                : '';
+            
+            return `
             <tr>
                 <td>
                     <div class="product-name">
                         ${escapeHtml(item.product_name)}
                         ${item.is_animal_drug ? '<span style="display:inline-block;background:#10b981;color:#fff;font-size:11px;padding:2px 6px;border-radius:4px;margin-left:6px;">🐾 동물약</span>' : ''}
+                        ${categoryBadge}
                     </div>
                     <div class="product-supplier ${item.is_set ? 'set' : ''}">${escapeHtml(item.supplier) || ''}</div>
                 </td>
@@ -738,13 +749,13 @@
                 <td>${item.barcode 
                     ? `<span class="code code-barcode">${item.barcode}</span>` 
                     : `<span class="code code-na">없음</span>`}</td>
-                <td class="stock ${(item.stock || 0) > 0 ? 'in-stock' : 'out-stock'}">${item.stock || 0}</td>
+                <td class="stock ${(item.stock || 0) > 0 ? 'in-stock' : 'out-stock'}">${item.stock || 0}${wsStock}</td>
                 <td class="price">${formatPrice(item.sale_price)}</td>
                 <td>
                     <button class="btn-qr" onclick="printQR(${idx})">🏷️ QR</button>
                 </td>
             </tr>
-        `).join('');
+        `}).join('');
     }
 
     // ── QR 인쇄 관련 ──