ui: remove connection status dot entirely

dashboard/static/index.html

@@ -21,12 +21,9 @@
 <div class="max-w-7xl mx-auto px-4 md:px-8 py-6 md:py-10">
 
   <!-- Header -->
-  <header class="flex flex-col sm:flex-row sm:items-center sm:justify-between gap-4 mb-8">
-    <div>
+  <header class="mb-8">
     <h1 class="text-xl md:text-2xl font-semibold tracking-tight">SNEK Dashboard</h1>
     <p class="text-sm text-slate-500 mt-0.5">Live Sens'it uplink decoding</p>
-    </div>
-    <span id="conn-dot" class="w-2 h-2 rounded-full bg-slate-300" title="disconnected"></span>
   </header>
 
   <!-- Devices -->
@@ -241,22 +238,8 @@ async function bootstrap() {
   renderMessages();
 }
 
-function setConn(state) {
-  const dot = document.getElementById('conn-dot');
-  const map = {
-    live: ['bg-emerald-500', 'connected'],
-    off:  ['bg-rose-500', 'disconnected'],
-    idle: ['bg-slate-300', 'connecting'],
-  };
-  const [color, title] = map[state] || map.idle;
-  dot.className = `w-2 h-2 rounded-full ${color}`;
-  dot.title = title;
-}
-
 function connectSSE() {
   const es = new EventSource('/events');
-  es.onopen = () => setConn('live');
-  es.onerror = () => setConn('off');
   es.onmessage = (ev) => {
     try {
       const msg = JSON.parse(ev.data);