Changes

Revert DPD label PDF transform — fit at print time via CUPS instead

The pdf-lib rescale added ~6s per label in practice (likely the re-serialized
PDF slowing the CUPS filter chain). Label PDFs now pass through untouched;
the width fit moves to lp options on the DPD print calls.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Fit DPD labels via CUPS options on print (-o fit-to-page + explicit media)

DPD A6 labels (105mm) exceed the Zebra queues' 101.6mm printable width and
got clipped ~7mm on the left. The DPD print calls now pass lp options so
CUPS scales at print time; DHL prints send no options and stay unchanged.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

add dhl to m shipper and wire

cache dhl 24 hours credentials

Revert "Fit DPD labels via CUPS options on print (-o fit-to-page + explicit media)"

This reverts commit da65b5f57439ab11749411ab097fc532555c4c67.

revert pdf dpd modifications

wire dhl kleinpaket national