Drop generated cards; registry descriptions become Elements tooltips

- resolveRefs no longer adds cards to a diagram; it returns node id →
  description, which the page sets as the tooltip of the matching row in
  Archify's Elements panel
- hand-written cards pass through unchanged; docs and changelog

src/webview/page.ts

@@ -18,6 +18,8 @@ export interface PageOptions {
   links?: Record<string, string>;
   /** The model page: metadata above the diagram, the diagram list and registry below. */
   model?: ModelPanel;
+  /** Node id → registry description, shown as tooltips in the Elements panel. */
+  descriptions?: Record<string, string>;
   /** Registry page: the elements of one .archify-registry file. */
   registry?: RegistryPanel;
 }
@@ -77,6 +79,7 @@ function bridgeScript(options: PageOptions): string {
     links: options.links ?? {},
     model: options.model,
     registry: options.registry,
+    descriptions: options.descriptions || {},
   };
   return `(function () {
   var config = ${scriptJson(config)};
@@ -322,6 +325,15 @@ function bridgeScript(options: PageOptions): string {
     document.body.appendChild(body);
   }
 
+  // Elements: registry descriptions as tooltips on Archify's node index rows.
+  function describeElements() {
+    var items = document.querySelectorAll('#node-outline .node-outline-item[data-outline-node]');
+    Array.prototype.forEach.call(items, function (item) {
+      var text = config.descriptions[item.getAttribute('data-outline-node')];
+      if (text) item.title = text;
+    });
+  }
+
   // Connectors: a rail panel next to Archify's Elements index, read from the
   // SVG's edges. Hover highlights the connector, click keeps it highlighted.
   function renderConnectors() {
@@ -486,6 +498,7 @@ function bridgeScript(options: PageOptions): string {
   if (config.model) onReady(function () { renderModel(config.model); });
   if (config.registry) onReady(function () { renderRegistry(config.registry); });
   onReady(renderConnectors);
+  onReady(describeElements);
   if (config.notice) {
     if (document.readyState === 'loading') {
       document.addEventListener('DOMContentLoaded', function () { showNotice(config.notice); });