feat: clean credits users

app/Models/PaymentTransaction.php

@@ -16,8 +16,7 @@ class PaymentTransaction extends Model
 
     protected $fillable = [
         'user_id',
-        'credit_product_id',
-        'credit_ledger_entry_id',
+        'billing_product_id',
         'type',
         'status',
         'stripe_event_id',
@@ -30,8 +29,6 @@ class PaymentTransaction extends Model
         'stripe_price_id',
         'amount',
         'currency',
-        'credits_expected',
-        'credits_granted',
         'invoice_url',
         'invoice_pdf_url',
         'invoice_email_sent_at',
@@ -45,14 +42,9 @@ class PaymentTransaction extends Model
         return $this->belongsTo(User::class);
     }
 
-    public function creditProduct(): BelongsTo
+    public function billingProduct(): BelongsTo
     {
-        return $this->belongsTo(CreditProduct::class);
-    }
-
-    public function creditLedgerEntry(): BelongsTo
-    {
-        return $this->belongsTo(CreditLedgerEntry::class);
+        return $this->belongsTo(BillingProduct::class);
     }
 
     protected function casts(): array
@@ -61,8 +53,6 @@ class PaymentTransaction extends Model
             'type' => PaymentTransactionType::class,
             'status' => PaymentTransactionStatus::class,
             'amount' => 'integer',
-            'credits_expected' => 'integer',
-            'credits_granted' => 'integer',
             'invoice_email_sent_at' => 'datetime',
             'payload' => 'array',
             'processed_at' => 'datetime',