refactor(services): share the SDK list-page wrapper

Signed-off-by: bircni <bircni@icloud.com>

internal/services/helpers.go

@@ -13,6 +13,7 @@ import (
 	"strings"
 	"time"
 
+	gitea "gitea.dev/sdk"
 	"gitea.dev/tea/internal/transport"
 )
 
@@ -99,6 +100,16 @@ func listPage[T any](limit, page int, fetch func(limit, page int) ([]T, http.Hea
 	return Page[T]{Items: result[:min(len(result), limit)], More: more, Total: total, Counted: counted}, nil
 }
 
+// callPage is listPage over an SDK list call.
+func callPage[T any](ctx context.Context, client *transport.Client, limit, page int, list func(context.Context, *gitea.Client, gitea.ListOptions) ([]T, *gitea.Response, error)) (Page[T], error) {
+	return listPage(limit, page, func(limit, page int) ([]T, http.Header, error) {
+		items, resp, err := call(ctx, client, func(ctx context.Context, c *gitea.Client) ([]T, *gitea.Response, error) {
+			return list(ctx, c, listOptions(limit, page))
+		})
+		return items, headerOf(resp), err
+	})
+}
+
 // rawPage is listPage over a raw JSON collection endpoint; it sets limit and page on query.
 func rawPage[T any](ctx context.Context, client *transport.Client, endpoint string, query url.Values, limit, page int) (Page[T], error) {
 	query = maps.Clone(query)