feat: 테이블 테두리 및 라운드 제거, 검색 필터 제목 제거

- 모든 테이블 컴포넌트의 외곽 테두리(border) 제거
- 테이블 컨테이너의 라운드(rounded-lg) 제거
- 테이블 행 구분선(border-b)은 유지하여 데이터 구분
- FlowWidget과 TableListComponent에 동일한 스타일 적용
- 검색 필터 영역의 회색 배경(bg-muted/30) 제거
- 검색 필터 제목 제거
- AdvancedSearchFilters 컴포넌트의 '검색 필터' 제목 제거

frontend/components/admin/UserAuthTable.tsx

@@ -32,37 +32,37 @@ export function UserAuthTable({ users, isLoading, paginationInfo, onEditAuth, on
         return {
           label: "최고 관리자",
           icon: <ShieldCheck className="h-3 w-3" />,
-          className: "bg-purple-100 text-purple-800 border-purple-300",
+          className: "bg-primary/20 text-primary border-primary/30",
         };
       case "COMPANY_ADMIN":
         return {
           label: "회사 관리자",
           icon: <Building2 className="h-3 w-3" />,
-          className: "bg-blue-100 text-blue-800 border-blue-300",
+          className: "bg-primary/20 text-primary border-primary/30",
         };
       case "USER":
         return {
           label: "일반 사용자",
           icon: <UserIcon className="h-3 w-3" />,
-          className: "bg-gray-100 text-gray-800 border-gray-300",
+          className: "bg-muted/50 text-muted-foreground border-border",
         };
       case "GUEST":
         return {
           label: "게스트",
           icon: <Users className="h-3 w-3" />,
-          className: "bg-green-100 text-green-800 border-green-300",
+          className: "bg-success/20 text-success border-success/30",
         };
       case "PARTNER":
         return {
           label: "협력업체",
           icon: <Shield className="h-3 w-3" />,
-          className: "bg-orange-100 text-orange-800 border-orange-300",
+          className: "bg-warning/20 text-warning border-warning/30",
         };
       default:
         return {
           label: userType || "미지정",
           icon: <UserIcon className="h-3 w-3" />,
-          className: "bg-gray-100 text-gray-800 border-gray-300",
+          className: "bg-muted/50 text-muted-foreground border-border",
         };
     }
   };
@@ -75,10 +75,10 @@ export function UserAuthTable({ users, isLoading, paginationInfo, onEditAuth, on
   // 로딩 스켈레톤
   if (isLoading) {
     return (
-      <div className="bg-card hidden rounded-lg border shadow-sm lg:block">
+      <div className="bg-card hidden shadow-sm lg:block">
         <Table>
           <TableHeader>
-            <TableRow className="bg-muted/50 border-b">
+            <TableRow className="bg-muted/50">
               <TableHead className="h-12 w-[80px] text-center text-sm font-semibold">No</TableHead>
               <TableHead className="h-12 text-sm font-semibold">사용자 ID</TableHead>
               <TableHead className="h-12 text-sm font-semibold">사용자명</TableHead>
@@ -89,8 +89,8 @@ export function UserAuthTable({ users, isLoading, paginationInfo, onEditAuth, on
             </TableRow>
           </TableHeader>
           <TableBody>
-            {Array.from({ length: 10 }).map((_, index) => (
-              <TableRow key={index} className="border-b">
+              {Array.from({ length: 10 }).map((_, index) => (
+                <TableRow key={index}>
                 <TableCell className="h-16">
                   <div className="bg-muted h-4 animate-pulse rounded"></div>
                 </TableCell>
@@ -123,7 +123,7 @@ export function UserAuthTable({ users, isLoading, paginationInfo, onEditAuth, on
   // 빈 상태
   if (users.length === 0) {
     return (
-      <div className="bg-card flex h-64 flex-col items-center justify-center rounded-lg border shadow-sm">
+      <div className="bg-card flex h-64 flex-col items-center justify-center shadow-sm">
         <p className="text-muted-foreground text-sm">등록된 사용자가 없습니다.</p>
       </div>
     );
@@ -133,10 +133,10 @@ export function UserAuthTable({ users, isLoading, paginationInfo, onEditAuth, on
   return (
     <div className="space-y-4">
       {/* 데스크톱 테이블 */}
-      <div className="bg-card hidden rounded-lg border shadow-sm lg:block">
+      <div className="bg-card hidden shadow-sm lg:block">
         <Table>
           <TableHeader>
-            <TableRow className="bg-muted/50 hover:bg-muted/50 border-b">
+            <TableRow className="bg-muted/50 hover:bg-muted/50">
               <TableHead className="h-12 w-[80px] text-center text-sm font-semibold">No</TableHead>
               <TableHead className="h-12 text-sm font-semibold">사용자 ID</TableHead>
               <TableHead className="h-12 text-sm font-semibold">사용자명</TableHead>
@@ -150,7 +150,7 @@ export function UserAuthTable({ users, isLoading, paginationInfo, onEditAuth, on
             {users.map((user, index) => {
               const typeInfo = getUserTypeInfo(user.userType);
               return (
-                <TableRow key={user.userId} className="hover:bg-muted/50 border-b transition-colors">
+                <TableRow key={user.userId} className="hover:bg-muted/50 transition-colors">
                   <TableCell className="h-16 text-center text-sm">{getRowNumber(index)}</TableCell>
                   <TableCell className="h-16 font-mono text-sm">{user.userId}</TableCell>
                   <TableCell className="h-16 text-sm">{user.userName}</TableCell>