Fix route in net worth and expand user group API

app/Models/CurrencyExchangeRate.php

@@ -29,6 +29,7 @@ use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Casts\Attribute;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\SoftDeletes;
 use Illuminate\Support\Carbon;
 
 /**
@@ -66,6 +67,8 @@ use Illuminate\Support\Carbon;
  */
 class CurrencyExchangeRate extends Model
 {
+    use SoftDeletes;
+
     /** @var array Convert these fields to other data types */
     protected $casts
                         = [
@@ -108,7 +111,7 @@ class CurrencyExchangeRate extends Model
     protected function rate(): Attribute
     {
         return Attribute::make(
-            get: fn ($value) => (string)$value,
+            get: fn($value) => (string)$value,
         );
     }
 
@@ -118,7 +121,7 @@ class CurrencyExchangeRate extends Model
     protected function userRate(): Attribute
     {
         return Attribute::make(
-            get: fn ($value) => (string)$value,
+            get: fn($value) => (string)$value,
         );
     }
 }