combine sounds and plato deals, use jinja for email

apps/vinyl/email.html

@@ -0,0 +1,21 @@
+<div style="font-family: Arial, sans-serif; padding: 20px;">
+    <h2 style="color: #333;">🎶 New Deals</h2>
+
+    {% for source, rows in deals.items() %}
+    <h2>{{ source|capitalize }}</h2>
+
+    {% for row in rows %}
+    <div style="margin-bottom: 10px; padding: 10px 15px; font-size: 0.95rem;">
+        <a href="{{ row.url }}" style="text-decoration: none; color: #1a73e8;">
+            <h3 style="margin: 0 0 10px;">🆕 {{ row.artist|title }} - {{ row.title|title }}</h3>
+        </a>
+        <ul style="list-style: none; padding-left: 0; margin: 0;">
+            <li><strong>Artist:</strong> {{ row.artist|title }}</li>
+            <li><strong>Title:</strong> {{ row.title|title }}</li>
+            <li><strong>Price:</strong> €{{ "%.2f"|format(row.price) }}</li>
+            <li><strong>Release Date:</strong> {{ row.release }}</li>
+        </ul>
+    </div>
+    {% endfor %}
+    {% endfor %}
+</div>