chore(api): regenerate from Telegram Bot API v10.2

Snapshot taken 2026-07-21. Notable shape change: ReplyParameters.MessageID
becomes optional (*int64) because Bot API 10.2 allows a reply to target
ephemeral_message_id instead. This breaks callers that set MessageID by value,
so examples/echo passes the address now.

New surface includes the ephemeral message methods, sendRichMessage with
InputRichMessageMedia, and the Community service messages.

examples/echo/handlers.go

@@ -26,7 +26,7 @@ func handleEcho(c *dispatch.Context, m *api.Message) error {
 	_, err := api.SendMessage(c.Ctx, c.Bot, &api.SendMessageParams{
 		ChatID:          api.ChatIDFromInt(m.Chat.ID),
 		Text:            m.Text,
-		ReplyParameters: &api.ReplyParameters{MessageID: m.MessageID},
+		ReplyParameters: &api.ReplyParameters{MessageID: &m.MessageID},
 	})
 	return err
 }