Fix cache folder issue - rename cache to caching to avoid gitignore

frontend/lib/caching/codeCache.ts

@@ -0,0 +1,105 @@
+/**
+ * 공통 코드 캐시 시스템
+ * 자주 사용되는 공통 코드들을 메모리에 캐싱하여 성능을 향상시킵니다.
+ */
+
+interface CacheEntry {
+  data: any;
+  timestamp: number;
+  expiry: number;
+}
+
+class CodeCache {
+  private cache = new Map<string, CacheEntry>();
+  private defaultTTL = 5 * 60 * 1000; // 5분
+
+  /**
+   * 캐시에 데이터 저장
+   */
+  set(key: string, data: any, ttl?: number): void {
+    const expiry = ttl || this.defaultTTL;
+    const entry: CacheEntry = {
+      data,
+      timestamp: Date.now(),
+      expiry,
+    };
+    this.cache.set(key, entry);
+  }
+
+  /**
+   * 캐시에서 데이터 조회
+   */
+  get(key: string): any | null {
+    const entry = this.cache.get(key);
+    if (!entry) {
+      return null;
+    }
+
+    // TTL 체크
+    if (Date.now() - entry.timestamp > entry.expiry) {
+      this.cache.delete(key);
+      return null;
+    }
+
+    return entry.data;
+  }
+
+  /**
+   * 캐시에서 데이터 삭제
+   */
+  delete(key: string): boolean {
+    return this.cache.delete(key);
+  }
+
+  /**
+   * 모든 캐시 삭제
+   */
+  clear(): void {
+    this.cache.clear();
+  }
+
+  /**
+   * 만료된 캐시 정리
+   */
+  cleanup(): void {
+    const now = Date.now();
+    for (const [key, entry] of this.cache.entries()) {
+      if (now - entry.timestamp > entry.expiry) {
+        this.cache.delete(key);
+      }
+    }
+  }
+
+  /**
+   * 캐시 상태 조회
+   */
+  getStats(): { size: number; keys: string[] } {
+    return {
+      size: this.cache.size,
+      keys: Array.from(this.cache.keys()),
+    };
+  }
+
+  /**
+   * 공통 코드 캐시 키 생성
+   */
+  createCodeKey(category: string, companyCode?: string): string {
+    return `code:${category}:${companyCode || "*"}`;
+  }
+}
+
+// 싱글톤 인스턴스 생성
+const codeCache = new CodeCache();
+
+// 주기적으로 만료된 캐시 정리 (10분마다)
+if (typeof window !== "undefined") {
+  setInterval(
+    () => {
+      codeCache.cleanup();
+    },
+    10 * 60 * 1000,
+  );
+}
+
+export default codeCache;
+export { CodeCache, codeCache };

frontend/lib/hooks/useEntityJoinOptimization.ts

@@ -4,7 +4,7 @@
  */
 
 import { useState, useEffect, useCallback, useMemo, useRef } from "react";
-import { codeCache } from "@/lib/cache/codeCache";
+import { codeCache } from "@/lib/caching/codeCache";
 
 interface ColumnMetaInfo {
   webType?: string;

frontend/lib/registry/components/table-list/TableListComponent.tsx

@@ -4,7 +4,7 @@ import React, { useState, useEffect, useMemo } from "react";
 import { TableListConfig, ColumnConfig } from "./types";
 import { tableTypeApi } from "@/lib/api/screen";
 import { entityJoinApi } from "@/lib/api/entityJoin";
-import { codeCache } from "@/lib/cache/codeCache";
+import { codeCache } from "@/lib/caching/codeCache";
 import { useEntityJoinOptimization } from "@/lib/hooks/useEntityJoinOptimization";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";