refactor: 전체 프론트엔드 하드코딩 색상 → CSS 변수 일괄 치환

447+ 파일, 4500+ 줄 변경:
- gray-* → border/bg-muted/text-foreground/text-muted-foreground
- blue-* → primary/ring
- red-* → destructive
- green-* → emerald (일관성)
- indigo-* → primary
- yellow/orange → amber (통일)
- dark mode 변형도 시맨틱 토큰으로 변환

Made-with: Cursor

frontend/components/dataflow/node-editor/nodes/UpdateActionNode.tsx

@@ -13,14 +13,14 @@ export const UpdateActionNode = memo(({ data, selected }: NodeProps<UpdateAction
   return (
     <div
       className={`min-w-[250px] rounded-lg border-2 bg-white shadow-md transition-all ${
-        selected ? "border-blue-500 shadow-lg" : "border-gray-200"
+        selected ? "border-primary shadow-lg" : "border-border"
       }`}
     >
       {/* 입력 핸들 */}
-      <Handle type="target" position={Position.Left} className="!h-3 !w-3 !border-2 !border-blue-500 !bg-white" />
+      <Handle type="target" position={Position.Left} className="!h-3 !w-3 !border-2 !border-primary !bg-white" />
 
       {/* 헤더 */}
-      <div className="flex items-center gap-2 rounded-t-lg bg-blue-500 px-3 py-2 text-white">
+      <div className="flex items-center gap-2 rounded-t-lg bg-primary px-3 py-2 text-white">
         <Edit className="h-4 w-4" />
         <div className="flex-1">
           <div className="text-sm font-semibold">UPDATE</div>
@@ -30,29 +30,29 @@ export const UpdateActionNode = memo(({ data, selected }: NodeProps<UpdateAction
 
       {/* 본문 */}
       <div className="p-3">
-        <div className="mb-2 text-xs font-medium text-gray-500">
+        <div className="mb-2 text-xs font-medium text-muted-foreground">
           타겟: {data.displayName || data.targetTable}
           {data.targetTable && data.displayName && data.displayName !== data.targetTable && (
-            <span className="ml-1 font-mono text-gray-400">({data.targetTable})</span>
+            <span className="ml-1 font-mono text-muted-foreground/70">({data.targetTable})</span>
           )}
         </div>
 
         {/* WHERE 조건 */}
         {data.whereConditions && data.whereConditions.length > 0 && (
           <div className="mb-3 space-y-1">
-            <div className="text-xs font-medium text-gray-700">WHERE 조건:</div>
+            <div className="text-xs font-medium text-foreground">WHERE 조건:</div>
             <div className="max-h-[80px] space-y-1 overflow-y-auto">
               {data.whereConditions.slice(0, 2).map((condition, idx) => (
-                <div key={idx} className="rounded bg-blue-50 px-2 py-1 text-xs">
-                  <span className="font-mono text-gray-700">{condition.fieldLabel || condition.field}</span>
-                  <span className="mx-1 text-blue-600">{condition.operator}</span>
-                  <span className="text-gray-600">
+                <div key={idx} className="rounded bg-primary/10 px-2 py-1 text-xs">
+                  <span className="font-mono text-foreground">{condition.fieldLabel || condition.field}</span>
+                  <span className="mx-1 text-primary">{condition.operator}</span>
+                  <span className="text-muted-foreground">
                     {condition.sourceFieldLabel || condition.sourceField || condition.staticValue || "?"}
                   </span>
                 </div>
               ))}
               {data.whereConditions.length > 2 && (
-                <div className="text-xs text-gray-400">... 외 {data.whereConditions.length - 2}개</div>
+                <div className="text-xs text-muted-foreground/70">... 외 {data.whereConditions.length - 2}개</div>
               )}
             </div>
           </div>
@@ -61,19 +61,19 @@ export const UpdateActionNode = memo(({ data, selected }: NodeProps<UpdateAction
         {/* 필드 매핑 */}
         {data.fieldMappings && data.fieldMappings.length > 0 && (
           <div className="space-y-1">
-            <div className="text-xs font-medium text-gray-700">업데이트 필드:</div>
+            <div className="text-xs font-medium text-foreground">업데이트 필드:</div>
             <div className="max-h-[100px] space-y-1 overflow-y-auto">
               {data.fieldMappings.slice(0, 3).map((mapping, idx) => (
-                <div key={idx} className="rounded bg-gray-50 px-2 py-1 text-xs">
-                  <span className="text-gray-600">
+                <div key={idx} className="rounded bg-muted px-2 py-1 text-xs">
+                  <span className="text-muted-foreground">
                     {mapping.sourceFieldLabel || mapping.sourceField || mapping.staticValue || "?"}
                   </span>
-                  <span className="mx-1 text-gray-400">→</span>
-                  <span className="font-mono text-gray-700">{mapping.targetFieldLabel || mapping.targetField}</span>
+                  <span className="mx-1 text-muted-foreground/70">→</span>
+                  <span className="font-mono text-foreground">{mapping.targetFieldLabel || mapping.targetField}</span>
                 </div>
               ))}
               {data.fieldMappings.length > 3 && (
-                <div className="text-xs text-gray-400">... 외 {data.fieldMappings.length - 3}개</div>
+                <div className="text-xs text-muted-foreground/70">... 외 {data.fieldMappings.length - 3}개</div>
               )}
             </div>
           </div>
@@ -82,7 +82,7 @@ export const UpdateActionNode = memo(({ data, selected }: NodeProps<UpdateAction
         {/* 옵션 */}
         {data.options && data.options.batchSize && (
           <div className="mt-2">
-            <span className="rounded bg-blue-100 px-1.5 py-0.5 text-xs text-blue-700">
+            <span className="rounded bg-primary/10 px-1.5 py-0.5 text-xs text-primary">
               배치 {data.options.batchSize}건
             </span>
           </div>
@@ -90,7 +90,7 @@ export const UpdateActionNode = memo(({ data, selected }: NodeProps<UpdateAction
       </div>
 
       {/* 출력 핸들 */}
-      <Handle type="source" position={Position.Right} className="!h-3 !w-3 !border-2 !border-blue-500 !bg-white" />
+      <Handle type="source" position={Position.Right} className="!h-3 !w-3 !border-2 !border-primary !bg-white" />
     </div>
   );
 });