Add EquipmentMasterController with authorization and equipment retrieval logic with relevant API

routes/web.php

@@ -1,6 +1,7 @@
 <?php
 
 use App\Mail\test;
+use App\Models\EquipmentMaster;
 use App\Models\InvoiceValidation;
 use App\Models\Plant;
 use Illuminate\Support\Facades\Mail;
@@ -10,6 +11,15 @@ use Illuminate\Support\Facades\Route;
         return redirect('/admin');
     });
 
+    Route::get('/download/{equipmentNumber}', function ($equipmentNumber) {
+    $model = EquipmentMaster::where('equipment_number', $equipmentNumber)->firstOrFail();
+
+    if (! $model->attachment || ! Storage::disk('local')->exists($model->attachment)) {
+        abort(404, 'File not found.');
+    }
+        return Storage::disk('local')->download($model->attachment);
+    })->name('download.attachment');
+
     // Route::get('/scheduler', function() {
     //     Artisan::call('schedule:run');
     // });