fix: resolve all TypeScript build errors after Setting branch merge

src/main.ts

@@ -26,7 +26,7 @@ async function apiBatchSave(url: string, data: any[], label: string) {
     console.log(`✅ ${label} DB 저장 완료`);
   } catch (err) {
     console.error(`❌ ${label} DB 저장 오류:`, err);
-    alert(`${label} 저장 중 오류가 발생했습니다: ${err.message}`);
+    alert(`${label} 저장 중 오류가 발생했습니다: ${(err as any).message}`);
   }
 }
 
@@ -125,9 +125,9 @@ function initApp() {
     const file = (e.target as HTMLInputElement).files?.[0];
     if (file) {
       const data = await parseExcel(file);
-      state.masterData = data;
+      state.masterData = { ...state.masterData, ...data };
       await Promise.all([saveAllHardwareToDB(), saveAllSoftwareToDB()]);
-      handleTabChange(state.activeSubTab);
+      refreshView();
     }
   });