create page tax with data, upload and export group by subdistrict

app/Exports/TaxationsExport.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Exports;
+
+use App\Models\Tax;
+use Maatwebsite\Excel\Concerns\WithMultipleSheets;
+
+class TaxationsExport implements WithMultipleSheets
+{
+    public function sheets(): array
+    {
+        $sheets = [];
+
+        // Ambil semua subdistrict unik
+        $subdistricts = Tax::select('subdistrict')->distinct()->pluck('subdistrict');
+
+        foreach ($subdistricts as $subdistrict) {
+            $sheets[] = new TaxSubdistrictSheetExport($subdistrict);
+        }
+
+        return $sheets;
+    }
+}