Refactor ChatInterface and MicButton components for improved scroll behavior and microphone support. Adjusted auto-scroll thresholds, added error handling for microphone access, and hid unused UI elements.

src/components/ChatInterface.jsx

@@ -1112,15 +1112,15 @@ function ChatInterface({ selectedProject, selectedSession, ws, sendMessage, mess
   const isNearBottom = useCallback(() => {
     if (!scrollContainerRef.current) return false;
     const { scrollTop, scrollHeight, clientHeight } = scrollContainerRef.current;
-    // Consider "near bottom" if within 100px of the bottom
+    // Consider "near bottom" if within 50px of the bottom
-    return scrollHeight - scrollTop - clientHeight < 100;
+    return scrollHeight - scrollTop - clientHeight < 50;
   }, []);
 
   // Handle scroll events to detect when user manually scrolls up
   const handleScroll = useCallback(() => {
     if (scrollContainerRef.current) {
-      const wasNearBottom = isNearBottom();
+      const nearBottom = isNearBottom();
-      setIsUserScrolledUp(!wasNearBottom);
+      setIsUserScrolledUp(!nearBottom);
     }
   }, [isNearBottom]);
 
@@ -1540,13 +1540,12 @@ function ChatInterface({ selectedProject, selectedSession, ws, sendMessage, mess
   });
 
   useEffect(() => {
-    // Only auto-scroll to bottom when new messages arrive if:
+    // Auto-scroll to bottom when new messages arrive
-    // 1. Auto-scroll is enabled in settings
-    // 2. User hasn't manually scrolled up
     if (scrollContainerRef.current && chatMessages.length > 0) {
       if (autoScrollToBottom) {
+        // If auto-scroll is enabled, always scroll to bottom unless user has manually scrolled up
         if (!isUserScrolledUp) {
-          setTimeout(() => scrollToBottom(), 0);
+          setTimeout(() => scrollToBottom(), 50); // Small delay to ensure DOM is updated
         }
       } else {
         // When auto-scroll is disabled, preserve the visual position
@@ -1564,12 +1563,15 @@ function ChatInterface({ selectedProject, selectedSession, ws, sendMessage, mess
     }
   }, [chatMessages.length, isUserScrolledUp, scrollToBottom, autoScrollToBottom]);
 
-  // Scroll to bottom when component mounts with existing messages
+  // Scroll to bottom when component mounts with existing messages or when messages first load
   useEffect(() => {
-    if (scrollContainerRef.current && chatMessages.length > 0 && autoScrollToBottom) {
+    if (scrollContainerRef.current && chatMessages.length > 0) {
-      setTimeout(() => scrollToBottom(), 100); // Small delay to ensure rendering
+      // Always scroll to bottom when messages first load (user expects to see latest)
+      // Also reset scroll state
+      setIsUserScrolledUp(false);
+      setTimeout(() => scrollToBottom(), 200); // Longer delay to ensure full rendering
     }
-  }, [scrollToBottom, autoScrollToBottom]);
+  }, [chatMessages.length > 0, scrollToBottom]); // Trigger when messages first appear
 
   // Add scroll event listener to detect user scrolling
   useEffect(() => {
@@ -1636,8 +1638,9 @@ function ChatInterface({ selectedProject, selectedSession, ws, sendMessage, mess
       can_interrupt: true
     });
     
-    // Always scroll to bottom when user sends a message (they're actively participating)
+    // Always scroll to bottom when user sends a message and reset scroll state
-    setTimeout(() => scrollToBottom(), 0);
+    setIsUserScrolledUp(false); // Reset scroll state so auto-scroll works for Claude's response
+    setTimeout(() => scrollToBottom(), 100); // Longer delay to ensure message is rendered
 
     // Session Protection: Mark session as active to prevent automatic project updates during conversation
     // This is crucial for maintaining chat state integrity. We handle two cases:
@@ -1882,21 +1885,21 @@ function ChatInterface({ selectedProject, selectedSession, ws, sendMessage, mess
         )}
         
         <div ref={messagesEndRef} />
-        
-        {/* Floating scroll to bottom button */}
-        {isUserScrolledUp && chatMessages.length > 0 && (
-          <button
-            onClick={scrollToBottom}
-            className="absolute bottom-4 right-4 w-10 h-10 bg-blue-600 hover:bg-blue-700 text-white rounded-full shadow-lg flex items-center justify-center transition-all duration-200 hover:scale-105 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:ring-offset-gray-800 z-10"
-            title="Scroll to bottom"
-          >
-            <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 14l-7 7m0 0l-7-7m7 7V3" />
-            </svg>
-          </button>
-        )}
       </div>
 
+      {/* Floating scroll to bottom button - positioned outside scrollable container */}
+      {isUserScrolledUp && chatMessages.length > 0 && (
+        <button
+          onClick={scrollToBottom}
+          className="fixed bottom-20 sm:bottom-24 right-4 sm:right-6 w-12 h-12 bg-blue-600 hover:bg-blue-700 text-white rounded-full shadow-lg flex items-center justify-center transition-all duration-200 hover:scale-105 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:ring-offset-gray-800 z-50"
+          title="Scroll to bottom"
+        >
+          <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 14l-7 7m0 0l-7-7m7 7V3" />
+          </svg>
+        </button>
+      )}
+
       {/* Input Area - Fixed Bottom */}
       <div className={`p-2 sm:p-4 md:p-6 flex-shrink-0 ${
         isInputFocused ? 'pb-2 sm:pb-4 md:pb-6' : 'pb-16 sm:pb-4 md:pb-6'
@@ -1977,8 +1980,8 @@ function ChatInterface({ selectedProject, selectedSession, ws, sendMessage, mess
                 </svg>
               </button>
             )}
-            {/* Mic button */}
+            {/* Mic button - HIDDEN */}
-            <div className="absolute right-16 sm:right-16 top-1/2 transform -translate-y-1/2">
+            <div className="absolute right-16 sm:right-16 top-1/2 transform -translate-y-1/2" style={{ display: 'none' }}>
               <MicButton 
                 onTranscript={handleTranscript}
                 className="w-10 h-10 sm:w-10 sm:h-10"

src/components/GitPanel.jsx

@@ -568,11 +568,13 @@ function GitPanel({ selectedProject, isMobile }) {
                     <Sparkles className="w-4 h-4" />
                   )}
                 </button>
-                <MicButton
+                <div style={{ display: 'none' }}>
-                  onTranscript={(transcript) => setCommitMessage(transcript)}
+                  <MicButton
-                  mode="default"
+                    onTranscript={(transcript) => setCommitMessage(transcript)}
-                  className="p-1.5"
+                    mode="default"
-                />
+                    className="p-1.5"
+                  />
+                </div>
               </div>
             </div>
             <div className="flex items-center justify-between mt-2">

src/components/MicButton.jsx

@@ -5,13 +5,35 @@ import { transcribeWithWhisper } from '../utils/whisper';
 export function MicButton({ onTranscript, className = '' }) {
   const [state, setState] = useState('idle'); // idle, recording, transcribing, processing
   const [error, setError] = useState(null);
+  const [isSupported, setIsSupported] = useState(true);
   
   const mediaRecorderRef = useRef(null);
   const streamRef = useRef(null);
   const chunksRef = useRef([]);
   const lastTapRef = useRef(0);
   
-  // Version indicator to verify updates
+  // Check microphone support on mount
+  useEffect(() => {
+    const checkSupport = () => {
+      if (!navigator.mediaDevices || !navigator.mediaDevices.getUserMedia) {
+        setIsSupported(false);
+        setError('Microphone not supported. Please use HTTPS or a modern browser.');
+        return;
+      }
+      
+      // Additional check for secure context
+      if (location.protocol !== 'https:' && location.hostname !== 'localhost') {
+        setIsSupported(false);
+        setError('Microphone requires HTTPS. Please use a secure connection.');
+        return;
+      }
+      
+      setIsSupported(true);
+      setError(null);
+    };
+    
+    checkSupport();
+  }, []);
 
   // Start recording
   const startRecording = async () => {
@@ -20,6 +42,11 @@ export function MicButton({ onTranscript, className = '' }) {
       setError(null);
       chunksRef.current = [];
 
+      // Check if getUserMedia is available
+      if (!navigator.mediaDevices || !navigator.mediaDevices.getUserMedia) {
+        throw new Error('Microphone access not available. Please use HTTPS or a supported browser.');
+      }
+
       const stream = await navigator.mediaDevices.getUserMedia({ audio: true });
       streamRef.current = stream;
 
@@ -79,7 +106,23 @@ export function MicButton({ onTranscript, className = '' }) {
       console.log('Recording started successfully');
     } catch (err) {
       console.error('Failed to start recording:', err);
-      setError('Microphone access denied');
+      
+      // Provide specific error messages based on error type
+      let errorMessage = 'Microphone access failed';
+      
+      if (err.name === 'NotAllowedError') {
+        errorMessage = 'Microphone access denied. Please allow microphone permissions.';
+      } else if (err.name === 'NotFoundError') {
+        errorMessage = 'No microphone found. Please check your audio devices.';
+      } else if (err.name === 'NotSupportedError') {
+        errorMessage = 'Microphone not supported by this browser.';
+      } else if (err.name === 'NotReadableError') {
+        errorMessage = 'Microphone is being used by another application.';
+      } else if (err.message.includes('HTTPS')) {
+        errorMessage = err.message;
+      }
+      
+      setError(errorMessage);
       setState('idle');
     }
   };
@@ -109,6 +152,11 @@ export function MicButton({ onTranscript, className = '' }) {
       e.stopPropagation();
     }
     
+    // Don't proceed if microphone is not supported
+    if (!isSupported) {
+      return;
+    }
+    
     // Debounce for mobile double-tap issue
     const now = Date.now();
     if (now - lastTapRef.current < 300) {
@@ -138,6 +186,14 @@ export function MicButton({ onTranscript, className = '' }) {
 
   // Button appearance based on state
   const getButtonAppearance = () => {
+    if (!isSupported) {
+      return {
+        icon: <Mic className="w-5 h-5" />,
+        className: 'bg-gray-400 cursor-not-allowed',
+        disabled: true
+      };
+    }
+    
     switch (state) {
       case 'recording':
         return {

src/components/QuickSettingsPanel.jsx

@@ -142,8 +142,8 @@ const QuickSettingsPanel = ({
               </label>
             </div>
 
-            {/* Whisper Dictation Settings */}
+            {/* Whisper Dictation Settings - HIDDEN */}
-            <div className="space-y-2">
+            <div className="space-y-2" style={{ display: 'none' }}>
               <h4 className="text-xs font-semibold uppercase tracking-wider text-gray-500 dark:text-gray-400 mb-2">Whisper Dictation</h4>
               
               <div className="space-y-2">