feat: 견적 산출 UI 개선 및 에러 메시지 상세화

- LocationDetailPanel: 제작사이즈(W1xH1), 산출중량(K kg), 산출면적(M m²) 표시
- actions.ts: BOM 계산 실패 시 상세 검증 에러 메시지 표시
- 오타 수정: 제적사이즈 → 제작사이즈

src/components/quotes/LocationDetailPanel.tsx

@@ -480,18 +480,28 @@ export function LocationDetailPanel({
           {/* 3행: 제작사이즈, 산출중량, 산출면적, 수량 */}
           <div className="grid grid-cols-4 gap-3 text-sm pt-2 border-t border-gray-200">
             <div>
-              <span className="text-xs text-gray-500">제적사이즈</span>
+              <span className="text-xs text-gray-500">제작사이즈</span>
               <p className="font-semibold">
-                {location.manufactureWidth || location.openWidth + 280}X{location.manufactureHeight || location.openHeight + 280}
+                {location.bomResult?.variables?.W1 || location.manufactureWidth || "-"}
+                X
+                {location.bomResult?.variables?.H1 || location.manufactureHeight || "-"}
               </p>
             </div>
             <div>
-              <span className="text-xs text-gray-500">-</span>
-              <p className="font-semibold">kg</p>
+              <span className="text-xs text-gray-500">산출중량</span>
+              <p className="font-semibold">
+                {location.bomResult?.variables?.K
+                  ? `${Number(location.bomResult.variables.K).toFixed(2)} kg`
+                  : "-"}
+              </p>
             </div>
             <div>
-              <span className="text-xs text-gray-500">-</span>
-              <p className="font-semibold">m²</p>
+              <span className="text-xs text-gray-500">산출면적</span>
+              <p className="font-semibold">
+                {location.bomResult?.variables?.M
+                  ? `${Number(location.bomResult.variables.M).toFixed(2)} m²`
+                  : "-"}
+              </p>
             </div>
             <div className="flex items-end">
               <Button