feat(receivables): fresh receivables implementation

app/Domains/Receivables/Http/Controllers/CustomerPortal/PaymentMethodController.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Domains\Receivables\Http\Controllers\CustomerPortal;
+
+use App\Domains\Accounts\Models\Company;
+use App\Domains\Receivables\Http\Resources\CustomerPortal\PaymentMethodResource;
+use App\Domains\Receivables\Models\PaymentMethod;
+use App\Platform\Http\Controller;
+use Illuminate\Http\Request;
+use Illuminate\Http\Response;
+
+class PaymentMethodController extends Controller
+{
+    /**
+     * List the payment methods on the portal company's books.
+     *
+     * Every row is offered, whatever kind it is: manual labels sit alongside
+     * gateway-registered ones, and neither the active flag nor the
+     * test-environment flag is consulted. That is wider than what a gateway
+     * picker wants, and it is kept that way on purpose.
+     *
+     * @return Response
+     */
+    public function __invoke(Request $request, Company $company)
+    {
+        $methods = PaymentMethod::query()
+            ->where('company_id', $company->id)
+            ->get();
+
+        return PaymentMethodResource::collection($methods);
+    }
+}