diff --git a/frontend/lib/registry/components/text-display/TextDisplayComponent.tsx b/frontend/lib/registry/components/text-display/TextDisplayComponent.tsx
index 38a42a75..84e82032 100644
--- a/frontend/lib/registry/components/text-display/TextDisplayComponent.tsx
+++ b/frontend/lib/registry/components/text-display/TextDisplayComponent.tsx
@@ -1,7 +1,7 @@
 "use client";
 
 import React from "react";
-import { ComponentRendererProps } from "../../types";
+import { ComponentRendererProps } from "@/types/component";
 import { TextDisplayConfig } from "./types";
 import { getAdaptiveLabelColor } from "@/lib/utils/darkModeColor";
 import { filterDOMProps } from "@/lib/utils/domPropsFilter";
diff --git a/frontend/lib/registry/components/text-input/TextInputComponent.tsx b/frontend/lib/registry/components/text-input/TextInputComponent.tsx
index 153f35f1..2827bcaa 100644
--- a/frontend/lib/registry/components/text-input/TextInputComponent.tsx
+++ b/frontend/lib/registry/components/text-input/TextInputComponent.tsx
@@ -116,8 +116,8 @@ export const TextInputComponent: React.FC<TextInputComponentProps> = ({
 
         // 🆕 채번 규칙이 설정되어 있으면 항상 _numberingRuleId를 formData에 설정
         // (값 생성 성공 여부와 관계없이, 저장 시점에 allocateCode를 호출하기 위함)
-        if (testAutoGeneration.type === "numbering_rule" && testAutoGeneration.options?.numberingRuleId) {
-          const ruleId = testAutoGeneration.options.numberingRuleId;
+        if (testAutoGeneration.type === "numbering_rule" && testAutoGeneration.options?.numbering_rule_id) {
+          const ruleId = testAutoGeneration.options.numbering_rule_id;
           if (ruleId && ruleId !== "undefined" && ruleId !== "null" && ruleId !== "") {
             const ruleIdKey = `${component.columnName}_numberingRuleId`;
             // formData에 아직 설정되지 않은 경우에만 설정
@@ -135,7 +135,7 @@ export const TextInputComponent: React.FC<TextInputComponentProps> = ({
 
           // 채번 규칙은 비동기로 처리
           if (testAutoGeneration.type === "numbering_rule") {
-            const ruleId = testAutoGeneration.options?.numberingRuleId;
+            const ruleId = testAutoGeneration.options?.numbering_rule_id;
             if (ruleId && ruleId !== "undefined" && ruleId !== "null") {
               try {
                 const { previewNumberingCode } = await import("@/lib/api/numberingRule");
@@ -154,7 +154,7 @@ export const TextInputComponent: React.FC<TextInputComponentProps> = ({
             }
           } else {
             // 기타 타입은 동기로 처리
-            generatedValue = AutoGenerationUtils.generateValue(testAutoGeneration, component.columnName);
+            generatedValue = await AutoGenerationUtils.generateValue(testAutoGeneration, component.columnName);
             isGeneratingRef.current = false;
           }
 
@@ -168,13 +168,13 @@ export const TextInputComponent: React.FC<TextInputComponentProps> = ({
               onFormDataChange(component.columnName, generatedValue);
 
               // 채번 규칙 ID도 함께 저장 (저장 시점에 실제 할당하기 위함)
-              if (testAutoGeneration.type === "numbering_rule" && testAutoGeneration.options?.numberingRuleId) {
+              if (testAutoGeneration.type === "numbering_rule" && testAutoGeneration.options?.numbering_rule_id) {
                 const ruleIdKey = `${component.columnName}_numberingRuleId`;
-                onFormDataChange(ruleIdKey, testAutoGeneration.options.numberingRuleId);
+                onFormDataChange(ruleIdKey, testAutoGeneration.options.numbering_rule_id);
               }
             }
           }
-        } else if (!autoGeneratedValue && testAutoGeneration.type !== "none") {
+        } else if (!autoGeneratedValue) {
           // 디자인 모드에서도 미리보기용 자동생성 값 표시
           const previewValue = AutoGenerationUtils.generatePreviewValue(testAutoGeneration);
           setAutoGeneratedValue(previewValue);
@@ -844,7 +844,7 @@ export const TextInputComponent: React.FC<TextInputComponentProps> = ({
 
               // 채번 규칙 ID 복구
               if (isInteractive && onFormDataChange && component.columnName) {
-                const ruleId = testAutoGeneration.options?.numberingRuleId;
+                const ruleId = testAutoGeneration.options?.numbering_rule_id;
                 if (ruleId) {
                   const ruleIdKey = `${component.columnName}_numberingRuleId`;
                   onFormDataChange(ruleIdKey, ruleId);
diff --git a/frontend/lib/registry/components/text-input/TextInputConfigPanel.tsx b/frontend/lib/registry/components/text-input/TextInputConfigPanel.tsx
index 126e6899..b44d6064 100644
--- a/frontend/lib/registry/components/text-input/TextInputConfigPanel.tsx
+++ b/frontend/lib/registry/components/text-input/TextInputConfigPanel.tsx
@@ -34,7 +34,7 @@ export const TextInputConfigPanel: React.FC<TextInputConfigPanelProps> = ({ conf
   
   // useState 초기값에서 저장된 값 복원 (우선순위: 저장된 값 > menuObjid prop)
   const [selectedMenuObjid, setSelectedMenuObjid] = useState<number | undefined>(() => {
-    return config.autoGeneration?.selectedMenuObjid || menuObjid;
+    return (config.autoGeneration as any)?.selectedMenuObjid || menuObjid;
   });
   
   const [loadingMenus, setLoadingMenus] = useState(false);
@@ -250,14 +250,14 @@ export const TextInputConfigPanel: React.FC<TextInputConfigPanelProps> = ({ conf
                       채번 규칙 선택 <span className="text-destructive">*</span>
                     </Label>
                     <Select
-                      value={config.autoGeneration?.options?.numberingRuleId || ""}
+                      value={config.autoGeneration?.options?.numbering_rule_id || ""}
                       onValueChange={(value) => {
                         const currentConfig = config.autoGeneration!;
                         handleChange("autoGeneration", {
                           ...currentConfig,
                           options: {
                             ...currentConfig.options,
-                            numberingRuleId: value,
+                            numbering_rule_id: value,
                           },
                         });
                       }}
diff --git a/frontend/lib/utils/buttonActions.ts b/frontend/lib/utils/buttonActions.ts
index 64441182..9c618622 100644
--- a/frontend/lib/utils/buttonActions.ts
+++ b/frontend/lib/utils/buttonActions.ts
@@ -4168,12 +4168,12 @@ export class ButtonActionExecutor {
       }
 
       const extendedContext: ExtendedControlContext = {
-        formData: context.formData || {},
-        selectedRows: context.selectedRows || [],
-        selectedRowsData: context.selectedRowsData || [],
-        flowSelectedData: context.flowSelectedData || [],
-        flowSelectedStepId: context.flowSelectedStepId,
-        controlDataSource,
+        form_data: context.formData || {},
+        selected_rows: context.selectedRows || [],
+        selected_rows_data: context.selectedRowsData || [],
+        flow_selected_data: context.flowSelectedData || [],
+        flow_selected_step_id: context.flowSelectedStepId,
+        control_data_source: controlDataSource,
       };
 
       // 🔥 새로운 버튼 액션 실행 시스템 사용
@@ -4395,10 +4395,10 @@ export class ButtonActionExecutor {
     }
 
     const extendedContext: ExtendedControlContext = {
-      formData: context.formData || {},
-      selectedRows: context.selectedRows || [],
-      selectedRowsData: context.selectedRowsData || [],
-      controlDataSource,
+      form_data: context.formData || {},
+      selected_rows: context.selectedRows || [],
+      selected_rows_data: context.selectedRowsData || [],
+      control_data_source: controlDataSource,
     };
 
     // 🔥 다중 제어 지원 (flowControls 배열)
diff --git a/frontend/lib/utils/formValidation.ts b/frontend/lib/utils/formValidation.ts
index d272d942..7cb3ffb5 100644
--- a/frontend/lib/utils/formValidation.ts
+++ b/frontend/lib/utils/formValidation.ts
@@ -87,16 +87,16 @@ export const validateFormData = async (
     const widgetComponents = components.filter((c) => c.type === "widget") as WidgetComponent[];
 
     for (const component of widgetComponents) {
-      const fieldName = component.columnName || component.id;
+      const fieldName = component.column_name || component.id;
       const value = formData[fieldName];
 
       if (value !== undefined && value !== null && value !== "") {
         const fieldValidation = validateFieldValue(
           fieldName,
           value,
-          component.widgetType,
-          component.webTypeConfig,
-          component.validationRules,
+          component.widget_type,
+          component.web_type_config,
+          component.validation_rules,
         );
 
         if (!fieldValidation.isValid && fieldValidation.error) {
@@ -137,11 +137,11 @@ export const validateFormSchema = (
   const invalidTypes: { field: string; expected: WebType; actual: string }[] = [];
   const suggestions: string[] = [];
 
-  const columnMap = new Map(tableColumns.map((col) => [col.columnName, col]));
+  const columnMap = new Map(tableColumns.map((col) => [col.column_name, col]));
   const widgetComponents = components.filter((c) => c.type === "widget") as WidgetComponent[];
 
   for (const component of widgetComponents) {
-    const fieldName = component.columnName;
+    const fieldName = component.column_name;
     if (!fieldName) continue;
 
     // 컬럼 존재 여부 확인
@@ -158,8 +158,8 @@ export const validateFormSchema = (
     }
 
     // 웹타입 일치 여부 확인
-    const componentWebType = normalizeWebType(component.widgetType);
-    const columnWebType = columnInfo.webType ? normalizeWebType(columnInfo.webType) : null;
+    const componentWebType = normalizeWebType(component.widget_type);
+    const columnWebType = columnInfo.web_type ? normalizeWebType(columnInfo.web_type) : null;
 
     if (columnWebType && componentWebType !== columnWebType) {
       invalidTypes.push({
@@ -170,11 +170,11 @@ export const validateFormSchema = (
     }
 
     // 웹타입 유효성 확인
-    if (!isValidWebType(component.widgetType)) {
+    if (!isValidWebType(component.widget_type)) {
       invalidTypes.push({
         field: fieldName,
         expected: "text", // 기본값
-        actual: component.widgetType,
+        actual: component.widget_type,
       });
     }
   }
@@ -199,7 +199,7 @@ export const validateRequiredFields = (
   const widgetComponents = components.filter((c) => c.type === "widget") as WidgetComponent[];
 
   for (const component of widgetComponents) {
-    const fieldName = component.columnName || component.id;
+    const fieldName = component.column_name || component.id;
     // 수동 required + NOT NULL 메타데이터 기반 통합 체크
     const isRequired = component.required || isColumnRequiredByMeta(tableName, fieldName);
     if (!isRequired) continue;
@@ -627,9 +627,9 @@ const findSimilarColumns = (targetColumn: string, columns: ColumnInfo[], thresho
   const similar: string[] = [];
 
   for (const column of columns) {
-    const similarity = calculateStringSimilarity(targetColumn, column.columnName);
+    const similarity = calculateStringSimilarity(targetColumn, column.column_name);
     if (similarity >= threshold) {
-      similar.push(column.columnName);
+      similar.push(column.column_name);
     }
   }
 
diff --git a/frontend/lib/utils/gridUtils.ts b/frontend/lib/utils/gridUtils.ts
index f1f89f24..20082852 100644
--- a/frontend/lib/utils/gridUtils.ts
+++ b/frontend/lib/utils/gridUtils.ts
@@ -1,5 +1,6 @@
 import { Position, Size } from "@/types/screen";
 import { GridSettings } from "@/types/screen-management";
+export type { GridSettings };
 
 export interface GridInfo {
   columnWidth: number;
diff --git a/frontend/lib/utils/improvedButtonActionExecutor.ts b/frontend/lib/utils/improvedButtonActionExecutor.ts
index c14e5aab..a847408a 100644
--- a/frontend/lib/utils/improvedButtonActionExecutor.ts
+++ b/frontend/lib/utils/improvedButtonActionExecutor.ts
@@ -171,28 +171,33 @@ export class ImprovedButtonActionExecutor {
       return plan;
     }
 
-    // 🔧 controlMode가 없으면 flowConfig/relationshipConfig 존재 여부로 자동 판단
-    const effectiveControlMode = dataflowConfig.controlMode 
-      || (dataflowConfig.flowConfig ? "flow" : null)
-      || (dataflowConfig.relationshipConfig ? "relationship" : null)
+    // 🔧 control_mode가 없으면 flow_config/relationship_config 존재 여부로 자동 판단
+    const effectiveControlMode = dataflowConfig.control_mode
+      || (dataflowConfig.flow_config ? "flow" : null)
+      || (dataflowConfig.relationship_config ? "relationship" : null)
       || "none";
 
     console.log("📋 실행 계획 생성:", {
-      controlMode: dataflowConfig.controlMode,
+      controlMode: dataflowConfig.control_mode,
       effectiveControlMode,
-      hasFlowConfig: !!dataflowConfig.flowConfig,
-      hasRelationshipConfig: !!dataflowConfig.relationshipConfig,
+      hasFlowConfig: !!dataflowConfig.flow_config,
+      hasRelationshipConfig: !!dataflowConfig.relationship_config,
       enableDataflowControl: buttonConfig.enable_dataflow_control,
     });
 
     // 관계 기반 제어
-    if (effectiveControlMode === "relationship" && dataflowConfig.relationshipConfig) {
+    if (effectiveControlMode === "relationship" && dataflowConfig.relationship_config) {
       const control: ControlConfig = {
         type: "relationship",
-        relationshipConfig: dataflowConfig.relationshipConfig,
+        relationshipConfig: {
+          relationshipId: dataflowConfig.relationship_config.relationship_id,
+          relationshipName: dataflowConfig.relationship_config.relationship_name,
+          executionTiming: dataflowConfig.relationship_config.execution_timing,
+          contextData: dataflowConfig.relationship_config.context_data,
+        },
       };
 
-      switch (dataflowConfig.relationshipConfig.executionTiming) {
+      switch (dataflowConfig.relationship_config.execution_timing) {
         case "before":
           plan.beforeControls.push(control);
           break;
@@ -207,15 +212,20 @@ export class ImprovedButtonActionExecutor {
     }
 
     // 🆕 플로우 기반 제어
-    if (effectiveControlMode === "flow" && dataflowConfig.flowConfig) {
+    if (effectiveControlMode === "flow" && dataflowConfig.flow_config) {
       const control: ControlConfig = {
         type: "flow",
-        flowConfig: dataflowConfig.flowConfig,
+        flowConfig: {
+          flowId: dataflowConfig.flow_config.flow_id,
+          flowName: dataflowConfig.flow_config.flow_name,
+          executionTiming: dataflowConfig.flow_config.execution_timing,
+          contextData: dataflowConfig.flow_config.context_data,
+        },
       };
 
-      console.log("📋 플로우 제어 설정:", dataflowConfig.flowConfig);
+      console.log("📋 플로우 제어 설정:", dataflowConfig.flow_config);
 
-      switch (dataflowConfig.flowConfig.executionTiming) {
+      switch (dataflowConfig.flow_config.execution_timing) {
         case "before":
           plan.beforeControls.push(control);
           break;
@@ -1074,7 +1084,7 @@ export class ImprovedButtonActionExecutor {
     console.error("🔄 실행 오류 처리 시작:", error.message);
 
     // 롤백이 필요한 경우 처리
-    const rollbackNeeded = buttonConfig.dataflow_config?.executionOptions?.rollbackOnError;
+    const rollbackNeeded = (buttonConfig.dataflow_config?.execution_options as any)?.rollback_on_error;
     if (rollbackNeeded) {
       console.log("🔄 롤백 처리 시작...");
 
diff --git a/frontend/lib/utils/multilang.ts b/frontend/lib/utils/multilang.ts
index 14341f7e..215ea29b 100644
--- a/frontend/lib/utils/multilang.ts
+++ b/frontend/lib/utils/multilang.ts
@@ -377,16 +377,6 @@ function getDefaultText(key: string): string {
     "menu.management.user": "사용자",
     "menu.management.user.description": "일반 사용자 업무 메뉴",
     "menu.list.title": "메뉴 목록",
-    "filter.search.placeholder": "메뉴명 검색...",
-    "filter.reset": "초기화",
-    "button.add.top.level": "최상위 메뉴 추가",
-    "button.delete.selected": "선택 삭제",
-    "table.header.menu.name": "메뉴명",
-    "table.header.sequence": "순서",
-    "table.header.company": "회사",
-    "table.header.menu.url": "URL",
-    "table.header.status": "상태",
-    "table.header.actions": "작업",
   };
 
   return defaultTexts[key] || "";
diff --git a/frontend/lib/utils/multilangLabelExtractor.ts b/frontend/lib/utils/multilangLabelExtractor.ts
index d0469cf8..3a2c50fc 100644
--- a/frontend/lib/utils/multilangLabelExtractor.ts
+++ b/frontend/lib/utils/multilangLabelExtractor.ts
@@ -419,6 +419,7 @@ export function applyMultilangMappings(
   const updateComponent = (comp: ComponentData): ComponentData => {
     const anyComp = comp as any;
     const config = anyComp.componentConfig || anyComp.config;
+    const compType = anyComp.componentType || anyComp.type;
     let updated = { ...comp } as any;
 
     // 기본 컴포넌트 라벨 매핑 확인
diff --git a/frontend/lib/utils/nodeFlowButtonExecutor.ts b/frontend/lib/utils/nodeFlowButtonExecutor.ts
index 2d4ab3cb..68c2c04b 100644
--- a/frontend/lib/utils/nodeFlowButtonExecutor.ts
+++ b/frontend/lib/utils/nodeFlowButtonExecutor.ts
@@ -42,7 +42,7 @@ export interface FlowExecutionResult {
  * 노드 플로우 실행 함수
  */
 export async function executeButtonWithFlow(
-  flowConfig: ButtonDataflowConfig["flowConfig"],
+  flowConfig: ButtonDataflowConfig["flow_config"],
   context: ButtonExecutionContext,
   originalAction?: () => Promise<void>,
 ): Promise<FlowExecutionResult> {
@@ -50,7 +50,7 @@ export async function executeButtonWithFlow(
     throw new Error("플로우 설정이 없습니다.");
   }
 
-  const { flowId, flowName, executionTiming = "before" } = flowConfig;
+  const { flow_id: flowId, flow_name: flowName, execution_timing: executionTiming = "before" } = flowConfig!;
 
   logger.info(`🚀 노드 플로우 실행 시작:`, {
     flowId,
diff --git a/frontend/lib/utils/responsiveDefaults.ts b/frontend/lib/utils/responsiveDefaults.ts
index a83b0ce3..418f1c88 100644
--- a/frontend/lib/utils/responsiveDefaults.ts
+++ b/frontend/lib/utils/responsiveDefaults.ts
@@ -26,17 +26,17 @@ export function generateSmartDefaults(
   if (fullWidthComponents.includes(componentId) || fullWidthComponents.includes(componentType)) {
     return {
       desktop: {
-        gridColumns: 12, // 전체 너비
+        grid_columns: 12, // 전체 너비
         order: 1,
         hide: false,
       },
       tablet: {
-        gridColumns: 8, // 전체 너비
+        grid_columns: 8, // 전체 너비
         order: 1,
         hide: false,
       },
       mobile: {
-        gridColumns: 4, // 전체 너비
+        grid_columns: 4, // 전체 너비
         order: 1,
         hide: false,
       },
@@ -53,17 +53,17 @@ export function generateSmartDefaults(
 
     return {
       desktop: {
-        gridColumns: desktopColumns,
+        grid_columns: desktopColumns,
         order: 1,
         hide: false,
       },
       tablet: {
-        gridColumns: tabletColumns,
+        grid_columns: tabletColumns,
         order: 1,
         hide: false,
       },
       mobile: {
-        gridColumns: mobileColumns,
+        grid_columns: mobileColumns,
         order: 1,
         hide: false,
       },
@@ -73,17 +73,17 @@ export function generateSmartDefaults(
   else if (componentWidthPercent <= 10) {
     return {
       desktop: {
-        gridColumns: 1, // 12컬럼 중 1개 (~8%)
+        grid_columns: 1, // 12컬럼 중 1개 (~8%)
         order: 1,
         hide: false,
       },
       tablet: {
-        gridColumns: 1, // 8컬럼 중 1개 (~12.5%)
+        grid_columns: 1, // 8컬럼 중 1개 (~12.5%)
         order: 1,
         hide: false,
       },
       mobile: {
-        gridColumns: 1, // 4컬럼 중 1개 (25%)
+        grid_columns: 1, // 4컬럼 중 1개 (25%)
         order: 1,
         hide: false,
       },
@@ -93,17 +93,17 @@ export function generateSmartDefaults(
   else if (componentWidthPercent <= 25) {
     return {
       desktop: {
-        gridColumns: 3, // 12컬럼 중 3개 (25%)
+        grid_columns: 3, // 12컬럼 중 3개 (25%)
         order: 1,
         hide: false,
       },
       tablet: {
-        gridColumns: 2, // 8컬럼 중 2개 (25%)
+        grid_columns: 2, // 8컬럼 중 2개 (25%)
         order: 1,
         hide: false,
       },
       mobile: {
-        gridColumns: 1, // 4컬럼 중 1개 (25%)
+        grid_columns: 1, // 4컬럼 중 1개 (25%)
         order: 1,
         hide: false,
       },
@@ -113,17 +113,17 @@ export function generateSmartDefaults(
   else if (componentWidthPercent <= 50) {
     return {
       desktop: {
-        gridColumns: 6, // 12컬럼 중 6개 (50%)
+        grid_columns: 6, // 12컬럼 중 6개 (50%)
         order: 1,
         hide: false,
       },
       tablet: {
-        gridColumns: 4, // 8컬럼 중 4개 (50%)
+        grid_columns: 4, // 8컬럼 중 4개 (50%)
         order: 1,
         hide: false,
       },
       mobile: {
-        gridColumns: 4, // 4컬럼 전체 (100%)
+        grid_columns: 4, // 4컬럼 전체 (100%)
         order: 1,
         hide: false,
       },
@@ -133,17 +133,17 @@ export function generateSmartDefaults(
   else {
     return {
       desktop: {
-        gridColumns: 12, // 전체 너비
+        grid_columns: 12, // 전체 너비
         order: 1,
         hide: false,
       },
       tablet: {
-        gridColumns: 8, // 전체 너비
+        grid_columns: 8, // 전체 너비
         order: 1,
         hide: false,
       },
       mobile: {
-        gridColumns: 4, // 전체 너비
+        grid_columns: 4, // 전체 너비
         order: 1,
         hide: false,
       },
@@ -162,13 +162,13 @@ export function ensureResponsiveConfig(component: ComponentData, screenWidth?: n
   return {
     ...component,
     responsive_config: {
-      designerPosition: {
+      designer_position: {
         x: component.position.x,
         y: component.position.y,
         width: component.size.width,
         height: component.size.height,
       },
-      useSmartDefaults: true,
+      use_smart_defaults: true,
       responsive: generateSmartDefaults(component, screenWidth),
     },
   };
diff --git a/frontend/lib/utils/webTypeConfigConverter.ts b/frontend/lib/utils/webTypeConfigConverter.ts
index b4a12d1a..1b7ec1db 100644
--- a/frontend/lib/utils/webTypeConfigConverter.ts
+++ b/frontend/lib/utils/webTypeConfigConverter.ts
@@ -21,10 +21,11 @@ export function convertWebTypeConfigToAutoGeneration(component: ComponentData):
   }
 
   // 이미 auto_generation이 올바르게 설정되어 있으면 변환 불필요
+  const anyComp = component as any;
   if (
-    component.auto_generation &&
-    component.auto_generation.type === config.autoValueType &&
-    component.auto_generation.options?.numbering_rule_id === config.numberingRuleId
+    anyComp.auto_generation &&
+    anyComp.auto_generation.type === config.autoValueType &&
+    anyComp.auto_generation.options?.numbering_rule_id === config.numberingRuleId
   ) {
     return component;
   }
@@ -46,7 +47,7 @@ export function convertWebTypeConfigToAutoGeneration(component: ComponentData):
   return {
     ...component,
     auto_generation,
-  };
+  } as unknown as ComponentData;
 }
 
 /**
diff --git a/frontend/lib/zplGenerator.ts b/frontend/lib/zplGenerator.ts
index c0b4dd17..1ed018e6 100644
--- a/frontend/lib/zplGenerator.ts
+++ b/frontend/lib/zplGenerator.ts
@@ -25,7 +25,7 @@ export function generateZPL(layout: BarcodeLabelLayout): string {
     "^LH0,0",
   ];
 
-  const sorted = [...components].sort((a, b) => (a.zIndex ?? 0) - (b.zIndex ?? 0));
+  const sorted = [...components].sort((a, b) => (a.z_index ?? 0) - (b.z_index ?? 0));
 
   for (const c of sorted) {
     const x = pxToDots(c.x);
@@ -34,25 +34,25 @@ export function generateZPL(layout: BarcodeLabelLayout): string {
     const h = pxToDots(c.height);
 
     if (c.type === "text") {
-      const fontH = Math.max(10, Math.min(120, (c.fontSize || 10) * 4)); // 대략적 변환
+      const fontH = Math.max(10, Math.min(120, (c.font_size || 10) * 4)); // 대략적 변환
       const fontW = Math.round(fontH * 0.6);
       lines.push(`^FO${x},${y}`);
       lines.push(`^A0N,${fontH},${fontW}`);
       lines.push(`^FD${escapeZPL(c.content || "")}^FS`);
     } else if (c.type === "barcode") {
-      if (c.barcodeType === "QR") {
+      if (c.barcode_type === "QR") {
         const size = Math.min(w, h);
         const qrSize = Math.max(1, Math.min(10, Math.round(size / 20)));
         lines.push(`^FO${x},${y}`);
         lines.push(`^BQN,2,${qrSize}`);
-        lines.push(`^FDQA,${escapeZPL(c.barcodeValue || "")}^FS`);
+        lines.push(`^FDQA,${escapeZPL(c.barcode_value || "")}^FS`);
       } else {
         // CODE128: ^BC, CODE39: ^B3
-        const mod = c.barcodeType === "CODE39" ? "^B3N" : "^BCN";
-        const showText = c.showBarcodeText !== false ? "Y" : "N";
+        const mod = c.barcode_type === "CODE39" ? "^B3N" : "^BCN";
+        const showText = c.show_barcode_text !== false ? "Y" : "N";
         lines.push(`^FO${x},${y}`);
         lines.push(`${mod},${Math.max(20, h - 10)},${showText},N,N`);
-        lines.push(`^FD${escapeZPL(c.barcodeValue || "")}^FS`);
+        lines.push(`^FD${escapeZPL(c.barcode_value || "")}^FS`);
       }
     }
     // 이미지/선/사각형은 ZPL에서 비트맵 또는 ^GB 등으로 확장 가능 (생략)