refactor(dashboard): move price clients to app namespace and simplify data

app/Repositories/ZonneplanPriceRepository.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace App\Repositories;
+
+use App\Contracts\PriceClient;
+use App\Contracts\PriceRepository as ContractsPriceRepository;
+use App\Features\Dashboard\Data\ElectricityData;
+use App\Features\Dashboard\Data\GasData;
+use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\Cache;
+use Override;
+
+class ZonneplanPriceRepository implements ContractsPriceRepository
+{
+    public function __construct(
+        public PriceClient $client
+    ) {}
+
+    #[Override]
+    public function retrieveElectricity(): Collection
+    {
+        $data = Cache::remember('electricity', 3600, fn () => $this->client->getElectricityPrices()->toArray());
+
+        return collect(ElectricityData::collect($data));
+    }
+
+    #[Override]
+    public function retrieveGas(): Collection
+    {
+        $data = Cache::remember('gas', 3600, fn () => $this->client->getGasPrices()->toArray());
+
+        return collect(GasData::collect($data));
+    }
+}