● Add prefer lowest remaining filament in auto-matching (#805)

When multiple AMS spools match the same type/color criteria, an optional
  setting now prefers the spool with the lowest remaining filament. This
  helps consume partial spools before starting new ones. Sorting applies
  to all matching paths: queue scheduler, print modal, and multi-printer
  mapping. Unknown remain values (-1) sort to end.

backend/app/api/routes/settings.py

@@ -88,6 +88,7 @@ async def get_settings(
                 "spoolman_disable_weight_sync",
                 "spoolman_report_partial_usage",
                 "disable_filament_warnings",
+                "prefer_lowest_filament",
                 "check_updates",
                 "check_printer_firmware",
                 "include_beta_updates",