feat: sync AI compose and ChatBot features

internal/rpc/webpage_url_extract.go

@@ -111,6 +111,11 @@ func sliceUTF16(units []uint16, offset, length int) string {
 //
 // 未启用预览或 URL 不可规范化返回 nil（发送降级为无预览，不报错）。
 func (r *Router) webPagePendingOrCachedMedia(ctx context.Context, rawURL string, invertMedia, forceLarge, forceSmall bool) *domain.MessageMedia {
+	if page, ok := r.resolveAIComposeStyleWebPage(ctx, rawURL); ok {
+		page.ForceLargeMedia = forceLarge
+		page.ForceSmallMedia = forceSmall
+		return &domain.MessageMedia{Kind: domain.MessageMediaKindWebPage, InvertMedia: invertMedia, WebPage: &page}
+	}
 	if r.deps.Files == nil || !r.deps.Files.WebPagePreviewEnabled() {
 		return nil
 	}