fix(db): allow PDOStatement::$options to be nullable

Author: cclilshy

src/PDO.php

@@ -251,7 +251,7 @@ public static function getAvailableDrivers(): array
      * @param array|null $options
      * @return static
      */
-    public static function connect(string $dsn, ?string $username = null, ?string $password = null, ?array $options = null): static
+    public static function connect(string $dsn, ?string $username = null, ?string $password = null, ?array $options = []): static
     {
         return new static($dsn, $username, $password, $options);
     }

src/PDOPool.php

@@ -91,7 +91,7 @@ public function __construct(
         private readonly string  $dsn,
         private readonly ?string $username = null,
         private readonly ?string $password = null,
-        private ?array           $options = null
+        private ?array           $options = []
     ) {
         $options = $options ?? [];
 
@@ -530,7 +530,7 @@ public static function getAvailableDrivers(): array
      * @param array|null $options PDO选项, 包含连接池配置
      * @return static 连接池实例
      */
-    public static function connect(string $dsn, ?string $username = null, ?string $password = null, ?array $options = null): static
+    public static function connect(string $dsn, ?string $username = null, ?string $password = null, ?array $options = []): static
     {
         return new static($dsn, $username, $password, $options);
     }