Rebrand the guest page and host console as JohnFeed

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/guest.html

@@ -1,9 +1,9 @@
 <!doctype html>
 <html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1">
 <meta name="robots" content="noindex">
-<title>MMO Guest Line</title><link rel="stylesheet" href="/static/style.css"></head>
+<title>JohnFeed</title><link rel="stylesheet" href="/static/style.css"></head>
 <body>
-<header><h1>MMO Guest Line</h1><span id="conn" class="pill">connecting…</span></header>
+<header><h1>JohnFeed</h1><span id="conn" class="pill">connecting…</span></header>
 <div id="fatal" class="banner hidden"></div>
 <main class="grid">
   <section class="card" id="audio">

web/host.html

@@ -1,8 +1,8 @@
 <!doctype html>
 <html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1">
-<title>Guest Line Console</title><link rel="stylesheet" href="/static/style.css"></head>
+<title>JohnFeed Console</title><link rel="stylesheet" href="/static/style.css"></head>
 <body>
-<header><h1>Guest Line - host console</h1><span id="conn" class="pill">connecting…</span></header>
+<header><h1>JohnFeed - host console</h1><span id="conn" class="pill">connecting…</span></header>
 <main class="grid">
   <section class="card">
     <h2>Invite</h2>

web/index.html

@@ -1,5 +1,5 @@
 <!doctype html>
 <html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1">
-<title>MMO Guest Line</title><link rel="stylesheet" href="/static/style.css"></head>
-<body><main class="narrow"><h1>MMO Guest Line</h1>
+<title>JohnFeed</title><link rel="stylesheet" href="/static/style.css"></head>
+<body><main class="narrow"><h1>JohnFeed</h1>
 <p class="muted">You need a personal invite link from the host to join a show.</p></main></body></html>

web/static/guest.js

@@ -17,7 +17,7 @@ function note(msg){
 }
 function diagReport(){
   const head = [
-    'MMO Guest Line - what is happening',
+    'JohnFeed - what is happening',
     'copied ' + new Date().toString(),
     'browser: ' + navigator.userAgent,
     'name: ' + ($('#name').value.trim() || 'Guest') + ' | headphones ticked: ' + $('#headphones').checked,