● 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.

frontend/src/components/PrintModal/PrinterSelector.tsx

@@ -107,7 +107,8 @@ function InlineMappingEditor({
       isManual = true;
     } else {
       const usedTrayIds = new Set<number>(Object.values(printerResult.config.manualMappings));
-      loaded = autoMatchFilament(req, printerResult.loadedFilaments, usedTrayIds) as LoadedFilament | undefined;
+      const cachedSettings = queryClient.getQueryData<{ prefer_lowest_filament?: boolean }>(['settings']);
+      loaded = autoMatchFilament(req, printerResult.loadedFilaments, usedTrayIds, cachedSettings?.prefer_lowest_filament) as LoadedFilament | undefined;
     }
 
     // Determine status

frontend/src/components/PrintModal/index.tsx

@@ -324,7 +324,7 @@ export function PrintModal({
   });
 
   // Get AMS mapping from hook (only when single printer selected)
-  const { amsMapping } = useFilamentMapping(effectiveFilamentReqs, printerStatus, manualMappings);
+  const { amsMapping } = useFilamentMapping(effectiveFilamentReqs, printerStatus, manualMappings, settings?.prefer_lowest_filament);
 
   // Multi-printer filament mapping (for per-printer configuration)
   const multiPrinterMapping = useMultiPrinterFilamentMapping(
@@ -333,7 +333,8 @@ export function PrintModal({
     effectiveFilamentReqs,
     manualMappings,
     perPrinterConfigs,
-    setPerPrinterConfigs
+    setPerPrinterConfigs,
+    settings?.prefer_lowest_filament,
   );
 
   // Auto-select first plate when plates load (single or multi-plate)