feat: [자재투입] 배정 자재 없을 때도 재고 검색/강제입고 기능 표시

src/components/production/WorkerScreen/MaterialInputModal.tsx

@@ -546,8 +546,70 @@ export function MaterialInputModal({
           {isLoading ? (
             <ContentSkeleton type="table" rows={4} />
           ) : materials.length === 0 ? (
-            <div className="border rounded-lg py-12 text-center text-sm text-gray-500">
-              이 공정에 배정된 자재가 없습니다.
+            <div className="border rounded-lg overflow-hidden">
+              <div className="py-8 text-center text-sm text-gray-500">
+                이 공정에 배정된 자재가 없습니다.
+              </div>
+              {/* 자재 없을 때도 재고 검색 + 강제입고 가능 */}
+              <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 자재명으로 재고 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>
+                </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, si) => (
+                      <div key={`${s.itemId}-${si}`} 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 && 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>
+                ) : 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</p>
+                )}
+                {searchQuery && (
+                  <Button
+                    size="sm"
+                    variant="outline"
+                    className="w-full h-8 text-xs border-orange-300 text-orange-600 hover:bg-orange-50"
+                    disabled={isForceCreating}
+                    onClick={() => {
+                      const firstResult = searchResults[0];
+                      if (firstResult) handleForceReceiving(firstResult.itemId, firstResult.itemCode);
+                    }}
+                  >
+                    {isForceCreating ? <Loader2 className="h-3 w-3 animate-spin mr-1" /> : <Zap className="h-3 w-3 mr-1" />}
+                    [DEV] 입고자료 강제생성
+                  </Button>
+                )}
+              </div>
             </div>
           ) : (
             <div className="space-y-4 flex-1 overflow-y-auto min-h-0">