chore: Install frontend dependencies and generate build assets.

Provider/frontend/src/App.svelte

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+<script>
+  let title = 'Calendink Provider';
+  let subtitle = 'ESP32-S3 System Dashboard';
+</script>
+
+<main>
+  <div class="card">
+    <h1>{title}</h1>
+    <p class="subtitle">{subtitle}</p>
+    <div class="status">
+      <span class="dot"></span>
+      <span>Hello World — Frontend is running!</span>
+    </div>
+  </div>
+</main>
+
+<style>
+  main {
+    width: 100%;
+  }
+
+  .card {
+    background-color: var(--bg-card);
+    border: 1px solid var(--border);
+    border-radius: 0.75rem;
+    padding: 2rem;
+    text-align: center;
+  }
+
+  h1 {
+    font-size: 1.75rem;
+    font-weight: 700;
+    color: var(--accent);
+    margin-bottom: 0.5rem;
+  }
+
+  .subtitle {
+    color: var(--text-secondary);
+    font-size: 0.9rem;
+    margin-bottom: 1.5rem;
+  }
+
+  .status {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.5rem;
+    background-color: rgba(56, 189, 248, 0.1);
+    border: 1px solid rgba(56, 189, 248, 0.2);
+    border-radius: 9999px;
+    padding: 0.5rem 1rem;
+    font-size: 0.85rem;
+    color: var(--accent);
+  }
+
+  .dot {
+    width: 8px;
+    height: 8px;
+    border-radius: 50%;
+    background-color: #22c55e;
+    animation: pulse 2s ease-in-out infinite;
+  }
+
+  @keyframes pulse {
+    0%, 100% { opacity: 1; }
+    50% { opacity: 0.4; }
+  }
+</style>

Provider/frontend/src/app.css

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+:root {
+  --bg-primary: #0f172a;
+  --bg-card: #1e293b;
+  --text-primary: #f1f5f9;
+  --text-secondary: #94a3b8;
+  --accent: #38bdf8;
+  --accent-hover: #7dd3fc;
+  --border: #334155;
+}
+
+* {
+  margin: 0;
+  padding: 0;
+  box-sizing: border-box;
+}
+
+body {
+  font-family: system-ui, -apple-system, sans-serif;
+  background-color: var(--bg-primary);
+  color: var(--text-primary);
+  min-height: 100vh;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+}
+
+#app {
+  width: 100%;
+  max-width: 640px;
+  padding: 1rem;
+}

Provider/frontend/src/main.js

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+import { mount } from 'svelte'
+import './app.css'
+import App from './App.svelte'
+
+const app = mount(App, {
+  target: document.getElementById('app'),
+})
+
+export default app