폼 선택자(Form Selector) 안정화, 다국어 번역 키 불일치 수정, 컴포넌트 테스트 용이성(Testability) 개선, Strict Mode 위반 해결, OIDC 모킹(Mocking) 강화

adminfront/src/features/users/components/UserBulkUploadModal.tsx

@@ -111,14 +111,14 @@ ${example}`,
       }}
     >
       <DialogTrigger asChild>
-        <Button variant="outline" className="gap-2">
+        <Button variant="outline" className="gap-2" data-testid="bulk-import-btn">
           <Upload size={16} />
           {t("ui.admin.users.list.bulk_import", "일괄 등록 (CSV)")}
         </Button>
       </DialogTrigger>
       <DialogContent className="max-w-2xl">
         <DialogHeader>
-          <DialogTitle>
+          <DialogTitle data-testid="bulk-upload-title">
             {t("ui.admin.users.bulk.title", "사용자 일괄 등록")}
           </DialogTitle>
           <DialogDescription>
@@ -278,6 +278,7 @@ ${example}`,
               onClick={handleUpload}
               disabled={previewData.length === 0 || mutation.isPending}
               className="w-full sm:w-auto"
+              data-testid="bulk-start-btn"
             >
               {mutation.isPending && (
                 <Loader2 size={16} className="mr-2 animate-spin" />
@@ -285,7 +286,11 @@ ${example}`,
               {t("ui.admin.users.bulk.start_upload", "등록 시작")}
             </Button>
           ) : (
-            <Button onClick={() => setOpen(false)} className="w-full sm:w-auto">
+            <Button
+              onClick={() => setOpen(false)}
+              className="w-full sm:w-auto"
+              data-testid="bulk-close-dialog-btn"
+            >
               {t("ui.common.close", "닫기")}
             </Button>
           )}