fix(WEB): 산출중량/면적 표시 수정 및 개소별 합계 스크롤 제거

- 산출중량: K ?? WEIGHT fallback으로 경동 전용 변수 지원
- 산출면적: M ?? AREA fallback으로 경동 전용 변수 지원
- 개소별 합계 섹션 max-h/overflow-y-auto 스크롤 제거

src/components/quotes/LocationDetailPanel.tsx

@@ -433,16 +433,16 @@ export function LocationDetailPanel({
             <div>
               <span className="text-xs text-gray-500">산출중량</span>
               <p className="font-semibold">
-                {location.bomResult?.variables?.K
-                  ? `${Number(location.bomResult.variables.K).toFixed(2)} kg`
+                {(location.bomResult?.variables?.K ?? location.bomResult?.variables?.WEIGHT)
+                  ? `${Number(location.bomResult?.variables?.K ?? location.bomResult?.variables?.WEIGHT).toFixed(2)} kg`
                   : "-"}
               </p>
             </div>
             <div>
               <span className="text-xs text-gray-500">산출면적</span>
               <p className="font-semibold">
-                {location.bomResult?.variables?.M
-                  ? `${Number(location.bomResult.variables.M).toFixed(2)} m²`
+                {(location.bomResult?.variables?.M ?? location.bomResult?.variables?.AREA)
+                  ? `${Number(location.bomResult?.variables?.M ?? location.bomResult?.variables?.AREA).toFixed(2)} m²`
                   : "-"}
               </p>
             </div>

src/components/quotes/QuoteSummaryPanel.tsx

@@ -154,7 +154,7 @@ export function QuoteSummaryPanel({
                 <p className="text-sm">개소를 추가해주세요</p>
               </div>
             ) : (
-              <div className="space-y-2 max-h-[300px] overflow-y-auto pr-2">
+              <div className="space-y-2">
                 {locationTotals.map((loc) => (
                   <div
                     key={loc.id}