fix: add getList with records wrapper + correct options format from browser capture

internal/provider/rainyun/client.go

@@ -44,6 +44,23 @@ func (c *client) getWithQuery(ctx context.Context, path string, query map[string
 	return c.do(ctx, "GET", path, nil, result, query)
 }
 
+// getList sends a GET request to a Rainyun list endpoint and extracts the "records" field.
+func (c *client) getList(ctx context.Context, path string, result any) error {
+	var wrapper listResponse
+	if err := c.do(ctx, "GET", path, nil, &wrapper, listOptions()); err != nil {
+		return err
+	}
+	// Unmarshal the records array into the result
+	recordsJSON, err := json.Marshal(wrapper.Records)
+	if err != nil {
+		return fmt.Errorf("marshal records: %w", err)
+	}
+	if err := json.Unmarshal(recordsJSON, result); err != nil {
+		return fmt.Errorf("unmarshal records: %w", err)
+	}
+	return nil
+}
+
 func (c *client) post(ctx context.Context, path string, body, result any) error {
 	return c.do(ctx, "POST", path, body, result, nil)
 }