entity-search-iniput 수정

frontend/lib/registry/components/entity-search-input/EntitySearchModal.tsx

@@ -148,9 +148,9 @@ export function EntitySearchModal({
                       선택
                     </th>
                   )}
-                  {displayColumns.map((col) => (
+                  {displayColumns.map((col, colIdx) => (
                     <th
-                      key={col}
+                      key={col || `header-${colIdx}`}
                       className="px-4 py-2 text-left font-medium text-muted-foreground"
                     >
                       {col}
@@ -179,7 +179,8 @@ export function EntitySearchModal({
                   </tr>
                 ) : (
                   results.map((item, index) => {
-                    const uniqueKey = item[valueField] !== undefined ? `${item[valueField]}` : `row-${index}`;
+                    // null과 undefined 모두 체크하여 유니크 키 생성
+                    const uniqueKey = item[valueField] != null ? `${item[valueField]}` : `row-${index}`;
                     const isSelected = isItemSelected(item);
                     return (
                       <tr
@@ -200,8 +201,8 @@ export function EntitySearchModal({
                             />
                           </td>
                         )}
-                        {displayColumns.map((col) => (
-                          <td key={`${uniqueKey}-${col}`} className="px-4 py-2">
+                        {displayColumns.map((col, colIdx) => (
+                          <td key={`${uniqueKey}-${col || colIdx}`} className="px-4 py-2">
                             {item[col] || "-"}
                           </td>
                         ))}