feat(TransactionRecord): 添加 TransactionRecord 类的 getter 方法

- 为 TransactionRecord 类添加了多个 getter 方法，以获取私有属性的值
- 新增的方法包括 getOrderNo、getUid、getPayType、getAction、getStatus、getSource、getItems、getTransactions、getRefunds、getExternal、getExternalId、getCreatedAt、getOccurredAt 和 getLastRefundedAt
- 这些方法提供了对交易记录各个字段的访问能力，便于在域内和其他对象进行交互

src/Domain/Transaction/Aggregate/TransactionRecord.php

@@ -54,4 +54,74 @@ final class TransactionRecord extends AggregateRoot
         private readonly ?Carbon $occurredAt,
         private readonly ?Carbon $lastRefundedAt,
     ) {}
+
+    public function getOrderNo(): string
+    {
+        return $this->orderNo;
+    }
+
+    public function getUid(): string
+    {
+        return $this->uid;
+    }
+
+    public function getPayType(): PayType
+    {
+        return $this->payType;
+    }
+
+    public function getAction(): OrderAction
+    {
+        return $this->action;
+    }
+
+    public function getStatus(): OrderStatus
+    {
+        return $this->status;
+    }
+
+    public function getSource(): string
+    {
+        return $this->source;
+    }
+
+    public function getItems(): array
+    {
+        return $this->items;
+    }
+
+    public function getTransactions(): array
+    {
+        return $this->transactions;
+    }
+
+    public function getRefunds(): array
+    {
+        return $this->refunds;
+    }
+
+    public function getExternal(): ?array
+    {
+        return $this->external;
+    }
+
+    public function getExternalId(): ?string
+    {
+        return $this->externalId;
+    }
+
+    public function getCreatedAt(): ?Carbon
+    {
+        return $this->createdAt;
+    }
+
+    public function getOccurredAt(): ?Carbon
+    {
+        return $this->occurredAt;
+    }
+
+    public function getLastRefundedAt(): ?Carbon
+    {
+        return $this->lastRefundedAt;
+    }
 }