feat: voice mic, pixel life layer, enhanced transcript-debug UX

VoiceMicButton component, PixelLife aquatic layer, improved UserMessageBubble
with voice display, AgentBadge terminal switcher, ChatContainer voice integration,
FloatingTranscriptDebug ocean life enhancements, and terminal registry support.
Remove traefik config.

frontend/src/styles/main.css

@@ -18,8 +18,6 @@
 
 html, body {
   height: 100%;
-  min-height: 100vh;
-  min-height: 100dvh;
   font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
   background: var(--bg-secondary);
   color: var(--text-primary);
@@ -28,10 +26,13 @@ html, body {
   overflow: hidden;
 }
 
+body {
+  position: fixed;
+  width: 100%;
+}
+
 #app {
   height: 100%;
-  min-height: 100vh;
-  min-height: 100dvh;
 }
 
 /* Scrollbar styling */