feat: [자재투입] 재고 없는 자재에 재고 검색 기능 추가

src/components/production/WorkerScreen/MaterialInputModal.tsx

@@ -14,7 +14,7 @@
  */
 
 import { useState, useEffect, useCallback, useMemo, useRef } from 'react';
-import { Loader2, Check, Zap, Info } from 'lucide-react';
+import { Loader2, Check, Zap, Info, Search, X } from 'lucide-react';
 import { ContentSkeleton } from '@/components/ui/skeleton';
 import {
   Dialog,
@@ -34,7 +34,7 @@ import {
 } from '@/components/ui/table';
 import { toast } from 'sonner';
 import { isNextRedirectError } from '@/lib/utils/redirect-error';
-import { getMaterialsForWorkOrder, registerMaterialInput, getMaterialsForItem, registerMaterialInputForItem, type MaterialForInput, type MaterialForItemInput } from './actions';
+import { getMaterialsForWorkOrder, registerMaterialInput, getMaterialsForItem, registerMaterialInputForItem, searchStockByCode, type MaterialForInput, type MaterialForItemInput, type StockSearchResult } from './actions';
 import type { WorkOrder } from '../ProductionDashboard/types';
 import type { MaterialInput } from './types';
 import { formatNumber } from '@/lib/utils/amount';
@@ -89,6 +89,20 @@ export function MaterialInputModal({
   const [isSubmitting, setIsSubmitting] = useState(false);
   const materialsLoadedRef = useRef(false);
 
+  // 재고 검색 상태
+  const [searchOpenGroup, setSearchOpenGroup] = useState<string | null>(null);
+  const [searchQuery, setSearchQuery] = useState('');
+  const [searchResults, setSearchResults] = useState<StockSearchResult[]>([]);
+  const [isSearching, setIsSearching] = useState(false);
+
+  const handleStockSearch = useCallback(async (query: string) => {
+    if (!query.trim()) { setSearchResults([]); return; }
+    setIsSearching(true);
+    const result = await searchStockByCode(query.trim());
+    if (result.success) setSearchResults(result.data);
+    setIsSearching(false);
+  }, []);
+
   // 목업 자재 데이터 (개발용)
   const MOCK_MATERIALS: MaterialForInput[] = Array.from({ length: 5 }, (_, i) => ({
     stockLotId: 100 + i,
@@ -742,6 +756,75 @@ export function MaterialInputModal({
                       </TableBody>
                     </Table>
                     </div>
+
+                    {/* 재고 검색 패널 */}
+                    {!group.lots.some(l => l.stockLotId !== null) && searchOpenGroup !== group.groupKey && (
+                      <button
+                        onClick={() => {
+                          setSearchOpenGroup(group.groupKey);
+                          setSearchQuery(group.materialCode || group.materialName);
+                          setSearchResults([]);
+                          handleStockSearch(group.materialCode || group.materialName);
+                        }}
+                        className="w-full px-4 py-2 text-xs text-red-600 bg-red-50 border-t flex items-center gap-1.5 hover:bg-red-100 transition-colors"
+                      >
+                        <Search className="h-3.5 w-3.5" />
+                        매칭 가능한 입고 재고 없음 — 클릭하여 재고 검색
+                      </button>
+                    )}
+                    {searchOpenGroup === group.groupKey && (
+                      <div className="px-4 py-3 bg-blue-50 border-t space-y-2">
+                        <div className="flex items-center gap-2">
+                          <Search className="h-3.5 w-3.5 text-blue-500 shrink-0" />
+                          <input
+                            type="text"
+                            value={searchQuery}
+                            onChange={(e) => setSearchQuery(e.target.value)}
+                            onKeyDown={(e) => e.key === 'Enter' && handleStockSearch(searchQuery)}
+                            placeholder="품목코드 또는 자재명 검색"
+                            className="flex-1 text-xs px-2 py-1.5 border rounded bg-white"
+                          />
+                          <Button size="sm" variant="outline" className="h-7 text-xs" onClick={() => handleStockSearch(searchQuery)}>
+                            {isSearching ? <Loader2 className="h-3 w-3 animate-spin" /> : '검색'}
+                          </Button>
+                          <button onClick={() => setSearchOpenGroup(null)} className="text-gray-400 hover:text-gray-600">
+                            <X className="h-4 w-4" />
+                          </button>
+                        </div>
+                        {searchResults.length > 0 ? (
+                          <div className="space-y-1">
+                            <p className="text-[11px] text-blue-600 font-medium">{searchResults.length}건 검색됨:</p>
+                            {searchResults.map((s) => (
+                              <div key={s.itemId} className={cn(
+                                "text-[11px] px-2 py-1.5 rounded border",
+                                s.availableQty > 0 ? "bg-white border-emerald-200" : "bg-gray-50 border-gray-200"
+                              )}>
+                                <div className="flex justify-between items-center">
+                                  <span className="font-medium">{s.itemCode}</span>
+                                  <span className={s.availableQty > 0 ? "text-emerald-600 font-semibold" : "text-gray-400"}>
+                                    가용 {formatNumber(s.availableQty)} EA
+                                  </span>
+                                </div>
+                                <div className="text-gray-500">{s.itemName}</div>
+                                {s.lots.length > 0 && (
+                                  <div className="mt-1 space-y-0.5">
+                                    {s.lots.slice(0, 3).map((l, li) => (
+                                      <div key={li} className="text-[10px] text-gray-400 ml-2">
+                                        LOT {l.lotNo} | {formatNumber(l.availableQty)} EA | FIFO #{l.fifoOrder}
+                                      </div>
+                                    ))}
+                                  </div>
+                                )}
+                              </div>
+                            ))}
+                          </div>
+                        ) : isSearching ? (
+                          <p className="text-[11px] text-gray-400 flex items-center gap-1"><Loader2 className="h-3 w-3 animate-spin" />검색 중...</p>
+                        ) : searchQuery && (
+                          <p className="text-[11px] text-red-500">검색 결과 없음 — 해당 품목의 입고 처리가 필요합니다</p>
+                        )}
+                      </div>
+                    )}
                   </div>
                 );
               })}