Add RUM events for Docs AI dashboard (#35932)

* Add RUM instrumentation for Docs AI leadership dashboard

Add impression and conversation close events to enable
reporting on chatbot adoption and engagement metrics.

* Label keyboard-enter AI suggestion trigger as search_suggestion

The keyboard path in instantsearch.js was missing a source,
defaulting to entry_button. Align with the click path.

Author: brett0000FF

assets/scripts/components/conversational-search/index.js

@@ -53,6 +53,9 @@ initializeFeatureFlags().then(async (client) => {
 
     if (IS_CONVERSATIONAL_SEARCH_ENABLED) {
         document.body.classList.add('conv-search-enabled');
+        logAction('Conversational Search Impression', {
+            conversational_search: { action: 'impression', page: window.location.pathname }
+        });
         initConversationalSearch();
     }
 });
@@ -322,6 +325,14 @@ class ConversationalSearch {
     }
 
     close() {
+        const messageCount = this.chatHistory.filter(m => m.role === 'user').length;
+        if (messageCount > 0) {
+            this.logInteraction('conversation_close', {
+                messages_sent: messageCount,
+                responses_received: this.chatHistory.filter(m => m.role === 'assistant').length
+            });
+        }
+
         this.isOpen = false;
         this.sidebar.classList.remove('open');
         this.overlay.classList.remove('open');

assets/scripts/components/instantsearch.js

@@ -358,7 +358,7 @@ function loadInstantSearch(currentPageWasAsyncLoaded) {
             if (selectedItem?.classList.contains('ais-Hits-ai-suggestion')) {
                 const query = selectedItem.dataset.query || aisSearchBoxInput.value;
                 if (window.askDocsAI) {
-                    window.askDocsAI(query);
+                    window.askDocsAI(query, { source: 'search_suggestion' });
                     // Hide the search dropdown
                     hitsContainerContainer.classList.add('d-none');
                     searchBoxContainerContainer.classList.remove('active-search');