fix: improve print layout and exclude paid bills

- Force white background on print preview page regardless of color scheme
- Exclude paid bills from print view
- Add proper spacing for printed barcodes
- Remove legacy barcodeImage support

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

app/lib/actions/printActions.ts

@@ -45,7 +45,8 @@ export const fetchBarcodeDataForPrint = withUser(async (user: AuthenticatedUser,
                 bills: 1,
                 barcodeImage: 1,
                 hub3aText: 1,
-                payedAmount: 1
+                payedAmount: 1,
+                paid: 1
             }
         })
         .toArray();
@@ -55,11 +56,8 @@ export const fetchBarcodeDataForPrint = withUser(async (user: AuthenticatedUser,
 
     for (const location of locations) {
         for (const bill of location.bills) {
-            // Only include bills that have barcode images
-            if ( ( bill.hub3aText && bill.hub3aText.trim() !== "") ||
-                // LEGACY SUPPORT ... untill all bills have been migrated
-                 (bill.barcodeImage && bill.barcodeImage.trim() !== "")
-                ) {
+            // Only include bills that have barcode images and are NOT PAID
+            if ( ( bill.hub3aText && bill.hub3aText.trim() !== "" && !bill.paid) ) {
                 printData.push({
                     locationName: location.name,
                     billName: bill.name,