...DIR}")
        return

    print(f"[OK] Gefunden: {len(files)} BLOCK-Dateien")
    print(f"[OK] Output nach: {OUT_DIR}")

    for src in files:
        rel = src.relative_to(IN_DIR)  # z.B. CONV_0001_.../CONV_0001_BLOCK_01.txt
        out_subdir = OUT_DIR / rel.parent
        out_subdir.mkdir(parents=True, exist_ok=True)

        out_file = out_subdir / (src.stem + ".analysis.txt")
        err_file =...