fix(server): remove PrintMode from RenderOptions after chart submodule update

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

internal/server/handlers.go

@@ -84,10 +84,7 @@ func (s *Server) handleChartCurrent(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	printMode := r.URL.Query().Get("print") == "true"
-	html, err := chartviewer.RenderHTMLWithOptions(snapshotBytes, title, chartviewer.RenderOptions{
-		PrintMode: printMode,
-	})
+	html, err := chartviewer.RenderHTMLWithOptions(snapshotBytes, title, chartviewer.RenderOptions{})
 	if err != nil {
 		s.htmlError(w, "failed to render chart: "+err.Error(), http.StatusInternalServerError)
 		return