Remove deprecated root-level files after Vite migration

app.js replaced by src/ modules; sw.js, manifest.json, icon.svg
moved to public/ — root copies were duplicates.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

icon.svg

@@ -1,22 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">
-  <rect width="512" height="512" rx="90" fill="#07070f"/>
-  <rect width="512" height="512" rx="90" fill="url(#bg)"/>
-  <defs>
-    <radialGradient id="bg" cx="30%" cy="40%" r="80%">
-      <stop offset="0%" stop-color="#1a1a2e"/>
-      <stop offset="100%" stop-color="#07070f"/>
-    </radialGradient>
-  </defs>
-  <!-- Music note -->
-  <g fill="#e8a020">
-    <!-- Note head 1 -->
-    <ellipse cx="180" cy="340" rx="48" ry="36" transform="rotate(-15 180 340)"/>
-    <!-- Note head 2 -->
-    <ellipse cx="332" cy="300" rx="48" ry="36" transform="rotate(-15 332 300)"/>
-    <!-- Stem -->
-    <rect x="218" y="160" width="18" height="185" rx="9"/>
-    <rect x="370" y="120" width="18" height="185" rx="9"/>
-    <!-- Beam -->
-    <rect x="218" y="160" width="170" height="22" rx="11"/>
-  </g>
-</svg>

manifest.json

@@ -1,25 +0,0 @@
-{
-  "name": "NovaSonic",
-  "short_name": "NovaSonic",
-  "description": "Self-hosted music streaming PWA",
-  "start_url": "/",
-  "scope": "/",
-  "display": "standalone",
-  "orientation": "portrait-primary",
-  "background_color": "#07070f",
-  "theme_color": "#07070f",
-  "icons": [
-    {
-      "src": "icon.svg",
-      "sizes": "any",
-      "type": "image/svg+xml",
-      "purpose": "any"
-    },
-    {
-      "src": "icon.svg",
-      "sizes": "any",
-      "type": "image/svg+xml",
-      "purpose": "maskable"
-    }
-  ]
-}

sw.js

@@ -1,40 +0,0 @@
-const CACHE = 'ns-v37';
-const PRECACHE = ['/', 'index.html', 'styles.css', 'app.js', 'manifest.json', 'icon.svg'];
-const SKIP_PATHS = ['/rest/stream', '/rest/download', '/config.js'];
-
-self.addEventListener('install', e => {
-  e.waitUntil(caches.open(CACHE).then(c => c.addAll(PRECACHE)));
-  self.skipWaiting();
-});
-
-self.addEventListener('activate', e => {
-  e.waitUntil(
-    caches.keys()
-      .then(keys => Promise.all(keys.filter(k => k !== CACHE).map(k => caches.delete(k))))
-      .then(() => self.clients.claim())
-      .then(() => self.clients.matchAll({ type: 'window', includeUncontrolled: true }))
-      .then(clients => clients.forEach(c => c.postMessage({ type: 'SW_UPDATED', version: CACHE })))
-  );
-});
-
-self.addEventListener('message', e => {
-  if (e.data?.type === 'GET_VERSION') {
-    e.source.postMessage({ type: 'VERSION', version: CACHE });
-  }
-});
-
-self.addEventListener('fetch', e => {
-  if (!e.request.url.startsWith(self.location.origin)) return;
-  if (SKIP_PATHS.some(p => e.request.url.includes(p))) return;
-  e.respondWith(
-    fetch(e.request)
-      .then(res => {
-        if (res.status === 200 && e.request.method === 'GET') {
-          const clone = res.clone();
-          caches.open(CACHE).then(c => c.put(e.request, clone));
-        }
-        return res;
-      })
-      .catch(() => caches.match(e.request).then(r => r || Response.error()))
-  );
-});