feat: Refactor EditModal for improved INSERT/UPDATE handling

- Introduced a new state flag `isCreateModeFlag` to determine the mode (INSERT or UPDATE) directly from the event, enhancing clarity in the modal's behavior.
- Updated the logic for initializing `originalData` and determining the mode, ensuring that the modal correctly identifies whether to create or update based on the provided data.
- Refactored the update logic to send the entire `formData` without relying on `originalData`, streamlining the update process.
- Enhanced logging for better debugging and understanding of the modal's state during operations.

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

@@ -3404,11 +3404,11 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
       {/* 우측 패널 */}
       <div
         style={{ width: `${100 - leftWidth}%`, minWidth: isPreview ? "0" : `${minRightWidth}px`, height: "100%" }}
-        className="flex flex-shrink-0 flex-col"
+        className="flex flex-shrink-0 flex-col border-l border-border/60 bg-muted/5"
       >
-        <Card className="flex flex-col border-0 shadow-none" style={{ height: "100%" }}>
+        <Card className="flex flex-col border-0 bg-transparent shadow-none" style={{ height: "100%" }}>
           <CardHeader
-            className="flex-shrink-0 border-b"
+            className="flex-shrink-0 border-b bg-muted/30"
             style={{
               height: componentConfig.rightPanel?.panelHeaderHeight || 48,
               minHeight: componentConfig.rightPanel?.panelHeaderHeight || 48,