Stop the index provenance from stalling the first Database visit

app.py

@@ -220,7 +220,11 @@ def build_app(catalog=None):
                                     + (f"Annotations load on demand from {catalog.manifest.get('source_count', len(catalog.manifest['sources']))} bucket files. "
                                        f"Index updated {catalog.manifest['created_at'][:10]}." if remote_mode else "Offline sample."), elem_classes="quiet-note")
                         gr.Dataframe(value=display_table(all_ids), interactive=False, show_label=False)
-                        gr.JSON(value=catalog.manifest, label="Index provenance" if remote_mode else "Sample provenance")
+                        # The manifest lists every indexed assembly, 33,722 of them. Rendered
+                        # as a JSON tree that is ~200k DOM nodes, which Gradio builds on the
+                        # first visit to this tab: a 3.8 s stall. The count says the same.
+                        gr.JSON(value={k: len(v) if k == "assemblies" else v for k, v in catalog.manifest.items()},
+                                label="Index provenance" if remote_mode else "Sample provenance")
 
         found = [status, results, hits, selected, file]
         shown = [metadata, start, end, plot, note, file]