diff --git a/android/src/screens/ChatScreen.tsx b/android/src/screens/ChatScreen.tsx
index 5be0fe6..bc71ab4 100644
--- a/android/src/screens/ChatScreen.tsx
+++ b/android/src/screens/ChatScreen.tsx
@@ -283,6 +283,8 @@ const ChatScreen: React.FC = () => {
 
       if (message.type === 'chat') {
         const sender = (message.payload.sender as string) || '';
+        const dbgText = ((message.payload.text as string) || '').slice(0, 60);
+        console.log('[Chat] chat-event sender=%s text=%s', sender || '(none)', dbgText);
 
         // STT-Ergebnis: Transkribierten Text in die Sprach-Bubble schreiben.
         // WICHTIG: Nur die ERSTE noch unaufgeloeste Aufnahme matchen — sonst
@@ -295,6 +297,9 @@ const ChatScreen: React.FC = () => {
               const idx = prev.findIndex(m =>
                 m.sender === 'user' && m.text.includes('Spracheingabe wird verarbeitet')
               );
+              console.log('[Chat] STT-Result: idx=%d text="%s" placeholders=%d',
+                          idx, sttText.slice(0, 60),
+                          prev.filter(m => m.sender === 'user' && m.text.includes('Spracheingabe wird verarbeitet')).length);
               const newText = `\uD83C\uDFA4 ${sttText}`;
               if (idx < 0) {
                 // Defensiv: wenn keine Placeholder im State (z.B. weil sie nie
diff --git a/diagnostic/index.html b/diagnostic/index.html
index f1696cd..021a116 100644
--- a/diagnostic/index.html
+++ b/diagnostic/index.html
@@ -63,24 +63,35 @@
     .log-entry.pipeline-sep { color: #333; margin: 6px 0 2px; }
 
     .chat-box { background: #080810; border: 1px solid #1E1E2E; border-radius: 6px;
-                min-height: 120px; max-height: 250px; overflow-y: auto; padding: 8px; margin-bottom: 8px; }
-    .chat-msg { margin-bottom: 6px; padding: 6px 10px; border-radius: 6px; font-size: 13px; line-height: 1.5; word-wrap: break-word; }
-    .chat-msg.sent { background: #0096FF; color: #fff; margin-left: 20%; text-align: right; }
-    .chat-msg.received { background: #1E1E2E; margin-right: 20%; }
-    .chat-msg.error { background: #3B1010; color: #FF6B6B; }
-    .chat-msg .meta { font-size: 10px; color: rgba(255,255,255,0.4); margin-top: 2px; }
+                min-height: 120px; max-height: 250px; overflow-y: auto;
+                padding: 12px; margin-bottom: 8px; display: flex; flex-direction: column; gap: 8px; }
+    .chat-msg { padding: 10px 14px; border-radius: 14px; font-size: 14px; line-height: 1.5;
+                word-wrap: break-word; max-width: 80%; white-space: pre-wrap;
+                box-shadow: 0 1px 2px rgba(0,0,0,0.4); }
+    .chat-msg.sent { background: #0096FF; color: #fff; align-self: flex-end;
+                     border-bottom-right-radius: 4px; }
+    .chat-msg.received { background: #1E1E2E; color: #E8E8F0; align-self: flex-start;
+                         border-bottom-left-radius: 4px; }
+    .chat-msg.error { background: #3B1010; color: #FF6B6B; align-self: flex-start; }
+    .chat-msg .meta { font-size: 10px; color: rgba(255,255,255,0.4); margin-top: 4px;
+                      display: block; }
     .chat-msg a { color: #66BBFF; text-decoration: underline; }
     .chat-msg.sent a { color: #CCEEFF; }
-    .chat-msg .chat-media { max-width: 100%; max-height: 200px; border-radius: 4px; margin-top: 4px; cursor: pointer; display: block; }
+    .chat-msg .chat-media { max-width: 100%; max-height: 200px; border-radius: 8px;
+                            margin-top: 6px; cursor: pointer; display: block; }
     .chat-msg .chat-media:hover { opacity: 0.85; }
     .lightbox-overlay { display:none; position:fixed; top:0; left:0; right:0; bottom:0; background:rgba(0,0,0,0.92);
                         z-index:2000; justify-content:center; align-items:center; cursor:pointer; }
     .lightbox-overlay.open { display:flex; }
     .lightbox-overlay img, .lightbox-overlay video { max-width:95vw; max-height:95vh; border-radius:8px; }
 
-    .input-row { display: flex; gap: 6px; }
-    .input-row input { flex: 1; background: #1E1E2E; border: 1px solid #333; border-radius: 6px;
-                       padding: 8px 12px; color: #E0E0F0; font-family: inherit; font-size: 13px; }
+    .input-row { display: flex; gap: 6px; align-items: flex-end; }
+    .input-row input, .input-row textarea {
+        flex: 1; background: #1E1E2E; border: 1px solid #333; border-radius: 6px;
+        padding: 8px 12px; color: #E0E0F0; font-family: inherit; font-size: 13px;
+    }
+    .input-row textarea { resize: none; min-height: 38px; max-height: 200px; line-height: 1.4;
+                          overflow-y: auto; }
 
     /* Terminal Modal */
     .modal-overlay { display:none; position:fixed; top:0; left:0; right:0; bottom:0; background:rgba(0,0,0,0.85);
@@ -282,7 +293,7 @@
           &#x1F4CE;
           <input type="file" id="diag-file-input" multiple accept="image/*,application/pdf,.doc,.docx,.txt" style="display:none;" onchange="handleDiagFileSelect(this.files)">
         </label>
-        <input type="text" id="chat-input" placeholder="Nachricht an ARIA..." onpaste="handleDiagPaste(event)">
+        <textarea id="chat-input" placeholder="Nachricht an ARIA... (Enter sendet, Shift+Enter neue Zeile)" rows="2" onpaste="handleDiagPaste(event)" oninput="autoResizeTextarea(this)"></textarea>
         <button class="btn" id="btn-gw" onclick="testGateway()">Gateway senden</button>
         <button class="btn" id="btn-rvs" onclick="testRVS()">Via RVS senden</button>
       </div>
@@ -300,7 +311,7 @@
       <span style="animation:pulse 1s infinite;">&#x1F4AD;</span> <span id="thinking-text-fs">ARIA denkt...</span>
     </div>
     <div class="input-row" style="margin-top:8px;">
-      <input type="text" id="chat-input-fs" placeholder="Nachricht an ARIA..." onkeydown="if(event.key==='Enter'){testRVSFS();event.preventDefault();}">
+      <textarea id="chat-input-fs" placeholder="Nachricht an ARIA... (Enter sendet, Shift+Enter neue Zeile)" rows="2" oninput="autoResizeTextarea(this)"></textarea>
       <button class="btn" onclick="testGatewayFS()">Gateway senden</button>
       <button class="btn" onclick="testRVSFS()">Via RVS senden</button>
     </div>
@@ -2069,10 +2080,23 @@
       return str.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
     }
 
-    // Enter-Taste sendet via Gateway
-    document.getElementById('chat-input').addEventListener('keydown', (e) => {
-      if (e.key === 'Enter') testRVS();
-    });
+    // Auto-Resize fuer Textarea — wuchst mit dem Inhalt bis zum max-height
+    function autoResizeTextarea(el) {
+      el.style.height = 'auto';
+      el.style.height = Math.min(el.scrollHeight, 200) + 'px';
+    }
+
+    // Enter sendet, Shift+Enter macht neue Zeile (chat-Standard).
+    function chatInputKeydown(e, sendFn) {
+      if (e.key === 'Enter' && !e.shiftKey) {
+        e.preventDefault();
+        sendFn();
+        // Textarea zurueck auf 2 rows setzen
+        e.target.style.height = 'auto';
+      }
+    }
+    document.getElementById('chat-input').addEventListener('keydown', (e) => chatInputKeydown(e, testRVS));
+    document.getElementById('chat-input-fs').addEventListener('keydown', (e) => chatInputKeydown(e, testRVSFS));
 
     // Escape schliesst Lightbox
     document.addEventListener('keydown', (e) => {
diff --git a/diagnostic/server.js b/diagnostic/server.js
index 59b1911..50b7485 100644
--- a/diagnostic/server.js
+++ b/diagnostic/server.js
@@ -716,11 +716,24 @@ function sendToRVS_withResponse(sendType, sendPayload, expectType, clientWs) {
 
 function sendToRVS_raw(msgObj) {
   if (!RVS_HOST || !RVS_TOKEN) return;
+  const payload = JSON.stringify(msgObj);
+  // Persistente Connection bevorzugen — die ist garantiert connected
+  // und wird vom RVS direkt an alle anderen Clients (App, Bridge) broadcastet.
+  // Frische Connections hatten Race-Probleme: die WS war nach dem send manchmal
+  // schon zu, bevor RVS broadcasten konnte → App-Nachrichten verloren.
+  if (rvsWs && rvsWs.readyState === WebSocket.OPEN) {
+    try {
+      rvsWs.send(payload);
+      return;
+    } catch (err) {
+      log("warn", "rvs", `persistente Verbindung send failed (${err.message}) — Fallback frische WS`);
+    }
+  }
   const proto = RVS_TLS === "true" ? "wss" : "ws";
   const url = `${proto}://${RVS_HOST}:${RVS_PORT}?token=${RVS_TOKEN}`;
   const freshWs = new WebSocket(url);
   freshWs.on("open", () => {
-    freshWs.send(JSON.stringify(msgObj));
+    freshWs.send(payload);
     setTimeout(() => { try { freshWs.close(); } catch (_) {} }, 5000);
   });
   freshWs.on("error", () => {});