/**
 * FileSystemService - File system operations
 */
export declare class FileSystemService {
    private static instance;
    private constructor();
    static getInstance(): FileSystemService;
    /**
     * Check if directory exists
     */
    directoryExists(dirPath: string): boolean;
    /**
     * Check if file exists
     */
    fileExists(filePath: string): boolean;
    /**
     * Create directory if it doesn't exist
     */
    ensureDirectory(dirPath: string): void;
    /**
     * Delete file
     */
    deleteFile(filePath: string): void;
    /**
     * Delete directory recursively
     */
    deleteDirectory(dirPath: string): void;
    /**
     * Read file contents
     */
    readFile(filePath: string): string;
    /**
     * Write file contents
     */
    writeFile(filePath: string, content: string): void;
    /**
     * Clean up old files
     */
    cleanupOldFiles(filePaths: string[]): void;
}
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