fix(settings): read SuperAdmin overlay via ConfigService everywhere

app/Http/Controllers/Auth/AuthController.php

@@ -260,9 +260,9 @@ class AuthController extends Controller
 
         $message = "{$data['name']} عزیز، اکانت شما در پلتفرم {$this->Config('name_fa')} ایجاد شد.";
         if ($cfg->getBool('register_referral_bonus_message', false)) {
-            $bonus = Setting::where('is_active', 1)->where('key', 'referral_bonus_amount')->first();
-            if ($bonus) {
-                $bonusValues = json_decode($bonus->value, true);
+            $bonusRaw = $cfg->getString('referral_bonus_amount');
+            if ($bonusRaw !== '') {
+                $bonusValues = json_decode($bonusRaw, true);
                 $message .= "\nپس از اولین خرید مقدار، " . number_format((int) ($bonusValues[0]['customer'] ?? 0)) . ' ریال پاداش دریافت خواهید کرد.';
             }
         }

app/Http/Controllers/Controller.php

@@ -202,15 +202,10 @@ class Controller extends BaseController
         ])->post('https://tele.ygram.ir/send-message', ["message" => $msg, "chatId" => $to, "botToken" => 'Paramisgold_bot']);
         return $response->json();
     }
+    /** @deprecated alias — همان ConfigService::get؛ overlay سوپرادمین را هم می‌خواند */
     public static function Config($name)
     {
-        $row = Setting::where('key', $name)->first();
-
-        if ($row && $row->is_active && $row->value !== null && $row->value !== '') {
-            return $row->value;
-        }
-
-        return false;
+        return app(ConfigService::class)->Config($name);
     }
 
     /** دامنهٔ عمومی سایت — فقط از درخواست HTTP فعلی */
@@ -227,12 +222,7 @@ class Controller extends BaseController
 
     protected static function metalTypeSettingValue(): ?string
     {
-        $metalType = Setting::where('key', 'metal_type')->value('value');
-        if ($metalType === null) {
-            return null;
-        }
-
-        $metalType = trim((string) $metalType);
+        $metalType = trim((string) app(ConfigService::class)->getString('metal_type'));
 
         return $metalType !== '' ? $metalType : null;
     }
@@ -495,7 +485,7 @@ class Controller extends BaseController
     public static function tradeWeightUnit(): string
     {
         return self::resolveTradeWeightUnit(
-            Setting::where('key', 'unit')->value('value')
+            app(ConfigService::class)->getString('unit')
         );
     }
 

app/Http/Controllers/Single/SingleOrderController.php

@@ -1696,12 +1696,12 @@ class SingleOrderController extends Controller
 
     private function bonusGift($customer, $referrer)
     {
-        $bonus = Setting::where('key', 'referral_bonus_amount')->where('is_active', 1)->first();
-        if ($bonus === null) {
+        $bonusRaw = app(\App\Services\ConfigService::class)->getString('referral_bonus_amount');
+        if ($bonusRaw === '') {
             return false;
         }
 
-        $bonus = json_decode($bonus->value, true);
+        $bonus = json_decode($bonusRaw, true);
         $customer_bonus = $bonus[0]['customer'] ?? 0;
         $referrer_bonus = $bonus[0]['referrer'] ?? 0;