Function copyFile

libs/platform/src/secure-fs.ts:257–264

(src: string, dest: string, mode?: number)

 * Wrapper around fs.copyFile that validates both paths first
 */
export async function copyFile(src: string, dest: string, mode?: number): Promise<void> {
  const validatedSrc = validatePath(src);
  const validatedDest = validatePath(dest);
  return executeWithRetry(
    () => fs.copyFile(validatedSrc, validatedDest, mode),
    `copyFile(${src}, ${dest})`
  );
}

/**
 * Wrapper around fs.appendFile that validates path first