feat: device TTS preferred in voice mode with model fallback; permanent src-garbage scrub; simplified-HTML translation with text fallback; New chat closes the drawer; real FA icons; audio unlock restored

public/js/clinicalAssistant.js

@@ -167,7 +167,11 @@ import {
       // Open WebUI behavior: the send button becomes Stop while working.
       if (assistantBusy) { e.preventDefault(); cancelAssistantSearch(); }
     });
-    if (clearBtn) clearBtn.addEventListener('click', clearConversation);
+    if (clearBtn) clearBtn.addEventListener('click', function(ev) {
+      var layout = document.getElementById('assistant-layout');
+      if (layout) layout.classList.remove('mobile-chats-open'); // back to the chat
+      clearConversation(ev);
+    });
     document.getElementById('btn-assistant-download-chat').addEventListener('click', downloadTranscript);
     if (goBackBtn) goBackBtn.addEventListener('click', goBackToMainMenu);
     if (input) {
@@ -920,6 +924,7 @@ import {
   }
 
   function startAssistantMic() {
+    unlockAudioPlayback();
     var input = document.getElementById('assistant-input');
     assistantMic.finalText = String(input && input.value || '');
     assistantMic.sessionFinals = '';
@@ -1023,6 +1028,7 @@ import {
   }
 
   function conversationStartListening() {
+    unlockAudioPlayback();
     var status = document.getElementById('assistant-voice-status');
     if (status) status.textContent = 'Listening…';
     conversationMode.listening = true;
@@ -1096,6 +1102,17 @@ import {
       if (st) st.textContent = msg || 'Tap to speak';
     };
     if (!text) { done(); return; }
+    // Device TTS first when the browser supports it; the model voice is the fallback.
+    if (typeof window !== 'undefined' && window.speechSynthesis && typeof SpeechSynthesisUtterance === 'function') {
+      try {
+        var utter = new SpeechSynthesisUtterance(text);
+        utter.onend = function() { done('Tap to speak'); };
+        utter.onerror = function() { done('Tap to speak'); };
+        window.speechSynthesis.cancel();
+        window.speechSynthesis.speak(utter);
+        return;
+      } catch (e) { /* fall through to the model voice */ }
+    }
     fetch('/api/text-to-speech', {
       method: 'POST',
       headers: getAuthHeaders(Object.assign({ 'Content-Type': 'application/json' })),
@@ -1600,6 +1617,18 @@ import {
     document.querySelectorAll('[data-assistant-translate-pop]').forEach(function(pop) { pop.remove(); });
   }
 
+  function simplifyHtmlForTranslation(html) {
+    var doc = new DOMParser().parseFromString(String(html || ''), 'text/html');
+    doc.body.querySelectorAll('.katex, .assistant-cite, .assistant-code-copy, .assistant-table-actions, .assistant-msg-actions, mjx-container, script, style').forEach(function(el) {
+      el.replaceWith(doc.createTextNode(el.textContent || ''));
+    });
+    doc.body.querySelectorAll('.assistant-table-scroll').forEach(function(el) {
+      var table = el.querySelector('table');
+      if (table) el.replaceWith(table);
+    });
+    return doc.body.innerHTML;
+  }
+
   function requestMessageTranslation(row, target, provider) {
     var bubble = row && row.querySelector('.assistant-bubble');
     if (!bubble) return;
@@ -1607,20 +1636,34 @@ import {
     var imageCards = Array.prototype.slice.call(bubble.querySelectorAll('.assistant-image-card'));
     imageCards.forEach(function(card) { card.remove(); });
     if (!bubble.assistantOriginalHtml) bubble.assistantOriginalHtml = bubble.innerHTML;
-    // Translate the raw markdown as text (LibreTranslate rejects rendered HTML),
+    // Translate simplified rendered HTML so headings, bold, lists and tables
-    // then re-render the translated text through the shared markdown pipeline.
+    // survive; LibreTranslate keeps those tags in html mode. Citations render
+    // as plain numbers inside their chips.
     var raw = bubble.assistantRawContent !== undefined ? bubble.assistantRawContent : String(bubble.textContent || '').trim();
     if (!String(raw).trim()) return;
-    translateAssistantMessage(raw, target, provider, 'text')
+    var simpleHtml = simplifyHtmlForTranslation(renderMarkdown(raw, [], {}));
+    translateAssistantMessage(simpleHtml, target, provider, 'html')
       .then(function(data) {
         if (!data.success) throw new Error(data.error || 'Translation failed');
-        bubble.innerHTML = renderMarkdown(String(data.translated || ''), [], {}) +
+        bubble.innerHTML = sanitize(String(data.translated || '')) +
           '<button type="button" class="btn-sm btn-ghost" data-assistant-msg-show-original><i class="fas fa-undo"></i> Show original</button>';
         imageCards.forEach(function(card) { bubble.appendChild(card); }); // same node — its status polling continues
         renderEmbeddedBlocks(bubble);
       })
       .catch(function(err) {
-        if (typeof showToast === 'function') showToast(err && err.message ? err.message : 'Translation failed', 'error');
+        // Html mode can be rejected by some LibreTranslate builds; fall back
+        // to plain text and re-render, so formatting is never fully lost.
+        translateAssistantMessage(raw, target, provider, 'text')
+          .then(function(data2) {
+            if (!data2.success) throw new Error(data2.error || 'Translation failed');
+            bubble.innerHTML = renderMarkdown(String(data2.translated || ''), [], {}) +
+              '<button type="button" class="btn-sm btn-ghost" data-assistant-msg-show-original><i class="fas fa-undo"></i> Show original</button>';
+            imageCards.forEach(function(card) { bubble.appendChild(card); });
+            renderEmbeddedBlocks(bubble);
+          })
+          .catch(function(err2) {
+            if (typeof showToast === 'function') showToast(err2 && err2.message ? err2.message : 'Translation failed', 'error');
+          });
       });
   }
 

src/utils/clinicalAnswer.js

@@ -35,6 +35,8 @@ async function finalizeAssistantAnswer(ai, options) {
 
 function stripModelSourcesSection(answer) {
   return cleanDanglingSourceLeadIn(String(answer || '')
+    .replace(/(?:^|\s)(?:\bsrc\b\s*){2,}$/i, '')
+    .replace(/\bsrc\b(?=\s*src\b)/gi, '')
     .replace(/\n\s*(---\s*)?(#{1,3}\s*)?(Sources|References)\s*\n[\s\S]*$/i, '')
     .replace(/\n\s*>?\s*(⚠️\s*)?Clinical decision support[^\n]*$/gim, '')
     .trim());