CHANGE_ID=LAUNDRY-20260913-POS-QTY-UI-V2-001
SCOPE=STAGING_ONLY
MIGRATION_REQUIRED=NO
FILES=2

PURPOSE:
Refine the laundry POS cart quantity UI after user acceptance of quantity support.

CHANGES:
- Compact quantity column in laundry cart.
- Editable quantity remains a numeric input.
- Add +/- controls directly in each cart row.
- +/- immediately triggers the existing row recalculation flow.
- Rename "سعر الوحدة" to "السعر".
- Rename "إجمالي السطر" to "الإجمالي".
- Widen service column for multiple services/accessories.
- Reduce note column width.
- Preserve total pieces summary.

NOT_CHANGED:
- No database migration.
- No accounting logic change.
- No ZATCA logic change.
- No invoice/receipt/report/print template change in this patch.
- No Live deployment.
