Maintenance and Visualization

// Replace a data item (delete → re-add → re-cognify)
await c.update("old-data-uuid", { type: "text", text: "updated content" }, "my-dataset");

// Remove all files from storage (metadata DB untouched)
await c.pruneData();

// Wipe graph, vector, metadata, and/or cache backends
await c.pruneSystem({ pruneGraph: true, pruneVector: true });

// Get the HTML string
const html = await c.visualize();

// Write to a file (returns the absolute path)
const path = await c.visualizeToFile({ destinationPath: "/tmp/graph.html" });