refactor: Remove password masking functionality from data services

- Deleted the `maskPasswordColumns` function from `dataService.ts` and its usage in data responses, simplifying the data handling process.
- Removed password handling logic from `DynamicFormService`, ensuring that password management is streamlined and centralized.
- Updated related components to reflect the removal of password masking, improving code clarity and maintainability.

frontend/lib/registry/components/v2-split-panel-layout/SplitPanelLayoutConfigPanel.tsx

@@ -1542,13 +1542,10 @@ export const SplitPanelLayoutConfigPanel: React.FC<SplitPanelLayoutConfigPanelPr
     return leftTableName ? loadedTableColumns[leftTableName] || [] : [];
   }, [loadedTableColumns, leftTableName]);
 
-  // 우측 테이블명 (상세 모드에서는 좌측과 동일)
+  // 우측 테이블명
   const rightTableName = useMemo(() => {
-    if (relationshipType === "detail") {
-      return leftTableName; // 상세 모드에서는 좌측과 동일
-    }
     return config.rightPanel?.tableName || "";
-  }, [relationshipType, leftTableName, config.rightPanel?.tableName]);
+  }, [config.rightPanel?.tableName]);
 
   // 우측 테이블 컬럼 (로드된 컬럼 사용)
   const rightTableColumns = useMemo(() => {
@@ -1567,8 +1564,8 @@ export const SplitPanelLayoutConfigPanel: React.FC<SplitPanelLayoutConfigPanelPr
     );
   }
 
-  // 조인 모드에서 우측 테이블 선택 시 사용할 테이블 목록
-  const availableRightTables = relationshipType === "join" ? allTables : tables;
+  // 우측 테이블 선택 시 사용할 테이블 목록 (모든 모드에서 전체 테이블 선택 가능)
+  const availableRightTables = allTables;
 
   console.log("📊 분할패널 테이블 목록 상태:");
   console.log("  - relationshipType:", relationshipType);
@@ -1584,7 +1581,7 @@ export const SplitPanelLayoutConfigPanel: React.FC<SplitPanelLayoutConfigPanelPr
           {
             id: "basic",
             title: "기본 설정",
-            desc: `${relationshipType === "detail" ? "1건 상세보기" : "연관 목록"} | 비율 ${config.splitRatio || 30}%`,
+            desc: `${relationshipType === "detail" ? "선택 시 표시" : "연관 목록"} | 비율 ${config.splitRatio || 30}%`,
             icon: Settings2,
           },
           {
@@ -1638,35 +1635,27 @@ export const SplitPanelLayoutConfigPanel: React.FC<SplitPanelLayoutConfigPanelPr
         <Select
           value={relationshipType}
           onValueChange={(value: "join" | "detail") => {
-            // 상세 모드로 변경 시 우측 테이블을 현재 화면 테이블로 설정
-            if (value === "detail" && screenTableName) {
-              updateRightPanel({
-                relation: { ...config.rightPanel?.relation, type: value },
-                tableName: screenTableName,
-              });
-            } else {
-              updateRightPanel({
-                relation: { ...config.rightPanel?.relation, type: value },
-              });
-            }
+            updateRightPanel({
+              relation: { ...config.rightPanel?.relation, type: value },
+            });
           }}
         >
           <SelectTrigger className="h-10 bg-white">
             <SelectValue placeholder="표시 방식 선택">
-              {relationshipType === "detail" ? "1건 상세보기" : "연관 목록"}
+              {relationshipType === "detail" ? "선택 시 표시" : "연관 목록"}
             </SelectValue>
           </SelectTrigger>
           <SelectContent>
             <SelectItem value="detail">
               <div className="flex flex-col py-1">
-                <span className="text-sm font-medium">1건 상세보기</span>
-                <span className="text-xs text-gray-500">좌측 클릭 시 해당 항목의 상세 정보 표시 (같은 테이블)</span>
+                <span className="text-sm font-medium">선택 시 표시</span>
+                <span className="text-xs text-gray-500">좌측 선택 시에만 우측 데이터 표시 / 미선택 시 빈 화면</span>
               </div>
             </SelectItem>
             <SelectItem value="join">
               <div className="flex flex-col py-1">
                 <span className="text-sm font-medium">연관 목록</span>
-                <span className="text-xs text-gray-500">좌측 클릭 시 연관된 데이터 목록 표시 / 미선택 시 전체 표시</span>
+                <span className="text-xs text-gray-500">미선택 시 전체 표시 / 좌측 선택 시 필터링</span>
               </div>
             </SelectItem>
           </SelectContent>
@@ -2305,7 +2294,7 @@ export const SplitPanelLayoutConfigPanel: React.FC<SplitPanelLayoutConfigPanelPr
           <div className="space-y-4">
       {/* 우측 패널 설정 */}
       <div className="space-y-4 rounded-lg border border-border/50 bg-muted/40 p-4">
-        <h3 className="border-l-2 border-l-primary/40 pl-2 text-sm font-semibold">우측 패널 설정 ({relationshipType === "detail" ? "1건 상세보기" : "연관 목록"})</h3>
+        <h3 className="border-l-2 border-l-primary/40 pl-2 text-sm font-semibold">우측 패널 설정 ({relationshipType === "detail" ? "선택 시 표시" : "연관 목록"})</h3>
 
         <div className="space-y-2">
           <Label>패널 제목</Label>
@@ -2338,63 +2327,49 @@ export const SplitPanelLayoutConfigPanel: React.FC<SplitPanelLayoutConfigPanelPr
         </div> */}
 
         {/* 관계 타입에 따라 테이블 선택 UI 변경 */}
-        {relationshipType === "detail" ? (
-          // 상세 모드: 좌측과 동일한 테이블 (자동 설정)
-          <div className="space-y-2">
-            <Label>테이블 (좌측과 동일)</Label>
-            <div className="rounded-lg border border-gray-200 bg-gray-50 p-3">
-              <p className="text-sm font-medium text-gray-900">
-                {config.leftPanel?.tableName || screenTableName || "테이블이 지정되지 않음"}
-              </p>
-              <p className="mt-1 text-xs text-gray-500">상세 모드에서는 좌측과 동일한 테이블을 사용합니다</p>
-            </div>
-          </div>
-        ) : (
-          // 조건 필터 모드: 전체 테이블에서 선택 가능
-          <div className="space-y-2">
-            <Label>필터링 대상 테이블</Label>
-            <Popover open={rightTableOpen} onOpenChange={setRightTableOpen}>
-              <PopoverTrigger asChild>
-                <Button
-                  variant="outline"
-                  role="combobox"
-                  aria-expanded={rightTableOpen}
-                  className="w-full justify-between"
-                >
-                  {config.rightPanel?.tableName || "테이블을 선택하세요"}
-                  <ChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" />
-                </Button>
-              </PopoverTrigger>
-              <PopoverContent className="w-full p-0">
-                <Command>
-                  <CommandInput placeholder="테이블 검색..." />
-                  <CommandEmpty>테이블을 찾을 수 없습니다.</CommandEmpty>
-                  <CommandGroup className="max-h-[200px] overflow-auto">
-                    {availableRightTables.map((table) => (
-                      <CommandItem
-                        key={table.tableName}
-                        value={`${table.displayName || ""} ${table.tableName}`}
-                        onSelect={() => {
-                          updateRightPanel({ tableName: table.tableName });
-                          setRightTableOpen(false);
-                        }}
-                      >
-                        <Check
-                          className={cn(
-                            "mr-2 h-4 w-4",
-                            config.rightPanel?.tableName === table.tableName ? "opacity-100" : "opacity-0",
-                          )}
-                        />
-                        {table.displayName || table.tableName}
-                        {table.displayName && <span className="ml-2 text-xs text-gray-500">({table.tableName})</span>}
-                      </CommandItem>
-                    ))}
-                  </CommandGroup>
-                </Command>
-              </PopoverContent>
-            </Popover>
-          </div>
-        )}
+        <div className="space-y-2">
+          <Label>우측 패널 테이블</Label>
+          <Popover open={rightTableOpen} onOpenChange={setRightTableOpen}>
+            <PopoverTrigger asChild>
+              <Button
+                variant="outline"
+                role="combobox"
+                aria-expanded={rightTableOpen}
+                className="w-full justify-between"
+              >
+                {config.rightPanel?.tableName || "테이블을 선택하세요"}
+                <ChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" />
+              </Button>
+            </PopoverTrigger>
+            <PopoverContent className="w-full p-0">
+              <Command>
+                <CommandInput placeholder="테이블 검색..." />
+                <CommandEmpty>테이블을 찾을 수 없습니다.</CommandEmpty>
+                <CommandGroup className="max-h-[200px] overflow-auto">
+                  {availableRightTables.map((table) => (
+                    <CommandItem
+                      key={table.tableName}
+                      value={`${table.displayName || ""} ${table.tableName}`}
+                      onSelect={() => {
+                        updateRightPanel({ tableName: table.tableName });
+                        setRightTableOpen(false);
+                      }}
+                    >
+                      <Check
+                        className={cn(
+                          "mr-2 h-4 w-4",
+                          config.rightPanel?.tableName === table.tableName ? "opacity-100" : "opacity-0",
+                        )}
+                      />
+                      {table.displayName || table.tableName}
+                      {table.displayName && <span className="ml-2 text-xs text-gray-500">({table.tableName})</span>}
+                    </CommandItem>
+                  ))}
+                </CommandGroup>
+              </Command>
+            </PopoverContent>
+          </Popover>
+        </div>
 
         <div className="space-y-2">
           <Label>표시 모드</Label>