Enhance CurrencyController with detailed method documentation and new functionalities

- Added comprehensive PHPDoc comments to all methods in the CurrencyController for better code clarity and maintainability.
- Introduced new methods: `getAllRates`, `getCurrentRates`, `getGoldRates`, `getCurrencyRateByName`, and `getGoldRateByName` to improve data retrieval from JSON files.
- Ensured all methods return appropriate JSON responses, enhancing the API's usability.

These changes improve the overall documentation and functionality of the CurrencyController, facilitating better management of financial data.

app/Http/Controllers/CurrencyController.php

@@ -7,9 +7,16 @@ use App\Jobs\FetchGoldRates;
 use App\Jobs\MergeCurrencyAndGoldRates;
 use Illuminate\Support\Facades\Storage;
 
+/**
+ * Class CurrencyController
+ * 
+ * This controller handles the fetching and returning of currency and gold rates.
+ */
 class CurrencyController extends Controller
 {
-
+    /**
+     * Dispatches all jobs to fetch currency and gold rates synchronously.
+     */
     public function runAllFetchs()
     {
         FetchCurrencyRates::dispatchSync();
@@ -17,6 +24,11 @@ class CurrencyController extends Controller
         MergeCurrencyAndGoldRates::dispatchSync();
     }
 
+    /**
+     * Retrieves all merged currency rates from a JSON file.
+     *
+     * @return \Illuminate\Http\JsonResponse
+     */
     public function getAllRates()
     {
         // Job'ı çalıştır
@@ -36,6 +48,11 @@ class CurrencyController extends Controller
         return response()->json(['error' => 'Veri bulunamadı'], 404);
     }
 
+    /**
+     * Retrieves the current currency rates from a JSON file.
+     *
+     * @return \Illuminate\Http\JsonResponse
+     */
     public function getCurrentRates()
     {
         // JSON dosyasından oku
@@ -49,6 +66,11 @@ class CurrencyController extends Controller
         return response()->json(['error' => 'Veri bulunamadı'], 404);
     }
 
+    /**
+     * Retrieves the current gold rates from a JSON file.
+     *
+     * @return \Illuminate\Http\JsonResponse
+     */
     public function getGoldRates()
     {
         // JSON dosyasından oku
@@ -62,6 +84,12 @@ class CurrencyController extends Controller
         return response()->json(['error' => 'Veri bulunamadı'], 404);
     }
 
+    /**
+     * Retrieves the currency rate by its name from a JSON file.
+     *
+     * @param string $currencyName
+     * @return \Illuminate\Http\JsonResponse
+     */
     public function getCurrencyRateByName($currencyName)
     {
         // JSON dosyasından oku
@@ -77,6 +105,12 @@ class CurrencyController extends Controller
         return response()->json(['error' => 'Data not found'], 404);
     }
 
+    /**
+     * Retrieves the gold rate by its name from a JSON file.
+     *
+     * @param string $goldName
+     * @return \Illuminate\Http\JsonResponse
+     */
     public function getGoldRateByName($goldName)
     {
         // JSON dosyasından oku