fix(WEB): 자재투입 모달 필요수량 컬럼 추가 및 너비 조정

- 필요수량 컬럼 추가 (6컬럼: 로트번호/품목명/필요수량/가용수량/단위/투입수량)
- 모달 너비 max-w-2xl → !max-w-3xl로 소폭 확대

src/components/production/WorkerScreen/MaterialInputModal.tsx

@@ -207,7 +207,7 @@ export function MaterialInputModal({
 
   return (
     <Dialog open={open} onOpenChange={onOpenChange}>
-      <DialogContent className="max-w-2xl p-0 gap-0">
+      <DialogContent className="!max-w-3xl p-0 gap-0">
         {/* 헤더 */}
         <DialogHeader className="p-6 pb-4">
           <DialogTitle className="text-xl font-semibold">자재 투입</DialogTitle>
@@ -224,6 +224,7 @@ export function MaterialInputModal({
                   <TableRow className="bg-gray-50">
                     <TableHead className="text-center">로트번호</TableHead>
                     <TableHead className="text-center">품목명</TableHead>
+                    <TableHead className="text-center">필요수량</TableHead>
                     <TableHead className="text-center">가용수량</TableHead>
                     <TableHead className="text-center">단위</TableHead>
                     <TableHead className="text-center">투입 수량</TableHead>
@@ -231,7 +232,7 @@ export function MaterialInputModal({
                 </TableHeader>
                 <TableBody>
                   <TableRow>
-                    <TableCell colSpan={5} className="text-center py-12 text-gray-500">
+                    <TableCell colSpan={6} className="text-center py-12 text-gray-500">
                       이 공정에 배정된 자재가 없습니다.
                     </TableCell>
                   </TableRow>
@@ -245,6 +246,7 @@ export function MaterialInputModal({
                   <TableRow className="bg-gray-50">
                     <TableHead className="text-center font-medium">로트번호</TableHead>
                     <TableHead className="text-center font-medium">품목명</TableHead>
+                    <TableHead className="text-center font-medium">필요수량</TableHead>
                     <TableHead className="text-center font-medium">가용수량</TableHead>
                     <TableHead className="text-center font-medium">단위</TableHead>
                     <TableHead className="text-center font-medium">투입 수량</TableHead>
@@ -264,6 +266,9 @@ export function MaterialInputModal({
                         <TableCell className="text-center text-sm">
                           {material.materialName}
                         </TableCell>
+                        <TableCell className="text-center text-sm">
+                          {material.requiredQty.toLocaleString()}
+                        </TableCell>
                         <TableCell className="text-center text-sm">
                           {hasStock ? material.lotAvailableQty.toLocaleString() : (
                             <span className="text-red-500">0</span>