feat: 이미지 위젯 및 미디어 컴포넌트 레이아웃 개선

- ImageWidget 컴포넌트에 size 및 style props를 추가하여 유연한 크기 조정 및 스타일 적용이 가능하도록 수정하였습니다.
- 이미지 표시 및 업로드 영역의 레이아웃을 개선하여, 부모 컨테이너의 크기를 기반으로 동적으로 조정되도록 하였습니다.
- V2Media 컴포넌트의 구조를 변경하여, 전체 높이를 유지하고 이미지 미리보기 영역의 flex 속성을 조정하여 일관된 사용자 경험을 제공하도록 하였습니다.
- 관련된 CSS 클래스를 업데이트하여 반응형 디자인을 강화하였습니다.

frontend/components/screen/widgets/types/ImageWidget.tsx

@@ -9,15 +9,17 @@ import { WidgetComponent } from "@/types/screen";
 import { toast } from "sonner";
 import { apiClient, getFullImageUrl } from "@/lib/api/client";
 
-export const ImageWidget: React.FC<WebTypeComponentProps> = ({ 
+export const ImageWidget: React.FC<WebTypeComponentProps & { size?: { width?: number; height?: number }; style?: React.CSSProperties }> = ({ 
   component, 
   value, 
   onChange, 
   readonly = false,
-  isDesignMode = false // 디자인 모드 여부
+  isDesignMode = false, // 디자인 모드 여부
+  size, // props로 전달된 size
+  style: propStyle, // props로 전달된 style
 }) => {
   const widget = component as WidgetComponent;
-  const { required, style } = widget;
+  const { required, style: widgetStyle } = widget;
   const fileInputRef = useRef<HTMLInputElement>(null);
   const [uploading, setUploading] = useState(false);
 
@@ -25,8 +27,16 @@ export const ImageWidget: React.FC<WebTypeComponentProps> = ({
   const rawImageUrl = value || widget.value || "";
   const imageUrl = rawImageUrl ? getFullImageUrl(rawImageUrl) : "";
 
-  // style에서 width, height 제거 (부모 컨테이너 크기 사용)
-  const filteredStyle = style ? { ...style, width: undefined, height: undefined } : {};
+  // 🔧 컴포넌트 크기를 명시적으로 적용 (props.size 우선, 없으면 style에서 가져옴)
+  const effectiveSize = size || (widget as any).size || {};
+  const effectiveStyle = propStyle || widgetStyle || {};
+  const containerStyle: React.CSSProperties = {
+    width: effectiveSize.width ? `${effectiveSize.width}px` : effectiveStyle?.width || "100%",
+    height: effectiveSize.height ? `${effectiveSize.height}px` : effectiveStyle?.height || "100%",
+  };
+
+  // style에서 width, height 제거 (내부 요소용)
+  const filteredStyle = effectiveStyle ? { ...effectiveStyle, width: undefined, height: undefined } : {};
 
   // 파일 선택 처리
   const handleFileSelect = () => {
@@ -120,11 +130,11 @@ export const ImageWidget: React.FC<WebTypeComponentProps> = ({
   };
 
   return (
-    <div className="h-full w-full">
+    <div className="flex h-full w-full flex-col" style={containerStyle}>
       {imageUrl ? (
         // 이미지 표시 모드
         <div
-          className="group relative h-full w-full overflow-hidden rounded-lg border border-gray-200 bg-gray-50 shadow-sm transition-all hover:shadow-md"
+          className="group relative flex-1 w-full overflow-hidden rounded-lg border border-gray-200 bg-gray-50 shadow-sm transition-all hover:shadow-md"
           style={filteredStyle}
         >
             <img
@@ -154,7 +164,7 @@ export const ImageWidget: React.FC<WebTypeComponentProps> = ({
       ) : (
         // 업로드 영역
         <div
-          className={`group relative flex h-full w-full flex-col items-center justify-center rounded-lg border-2 border-dashed p-3 text-center shadow-sm transition-all duration-300 ${
+          className={`group relative flex flex-1 w-full flex-col items-center justify-center rounded-lg border-2 border-dashed p-3 text-center shadow-sm transition-all duration-300 ${
             isDesignMode 
               ? "cursor-default border-gray-200 bg-gray-50" 
               : "cursor-pointer border-gray-300 bg-white hover:border-blue-400 hover:bg-blue-50/50 hover:shadow-md"

frontend/components/v2/V2Media.tsx

@@ -305,19 +305,19 @@ const ImageUploader = forwardRef<HTMLDivElement, {
   }, [images, multiple, onChange]);
 
   return (
-    <div ref={ref} className={cn("space-y-3", className)}>
+    <div ref={ref} className={cn("flex h-full w-full flex-col", className)}>
       {/* 이미지 미리보기 */}
       {preview && images.length > 0 && (
         <div className={cn(
-          "grid gap-2",
+          "grid gap-2 flex-1",
           multiple ? "grid-cols-2 sm:grid-cols-3 lg:grid-cols-4" : "grid-cols-1"
         )}>
           {images.map((src, index) => (
-            <div key={index} className="relative group aspect-square rounded-lg overflow-hidden border">
+            <div key={index} className="relative group rounded-lg overflow-hidden border h-full">
               <img
                 src={src}
                 alt={`이미지 ${index + 1}`}
-                className="w-full h-full object-cover"
+                className="w-full h-full object-contain"
               />
               <div className="absolute inset-0 bg-black/50 opacity-0 group-hover:opacity-100 transition-opacity flex items-center justify-center gap-2">
                 <Button
@@ -347,7 +347,7 @@ const ImageUploader = forwardRef<HTMLDivElement, {
       {(!images.length || multiple) && (
         <div
           className={cn(
-            "border-2 border-dashed rounded-lg p-4 text-center transition-colors",
+            "flex flex-1 flex-col items-center justify-center border-2 border-dashed rounded-lg p-4 text-center transition-colors",
             isDragging && "border-primary bg-primary/5",
             disabled && "opacity-50 cursor-not-allowed",
             !disabled && "cursor-pointer hover:border-primary/50"
@@ -540,7 +540,7 @@ export const V2Media = forwardRef<HTMLDivElement, V2MediaProps>(
       <div
         ref={ref}
         id={id}
-        className="flex flex-col"
+        className="flex h-full w-full flex-col"
         style={{
           width: componentWidth,
           height: componentHeight,
@@ -561,7 +561,7 @@ export const V2Media = forwardRef<HTMLDivElement, V2MediaProps>(
             {required && <span className="text-orange-500 ml-0.5">*</span>}
           </Label>
         )}
-        <div className="flex-1 min-h-0">
+        <div className="flex-1 min-h-0 h-full">
           {renderMedia()}
         </div>
       </div>