Applicatie afmaken en GUI-flow herstellen

Voegt boodschappenlijsten, productbeheer, realtime synchronisatie en browsercache-updates toe. Herstelt login- en sessiegedrag en maakt database-seeding herhaalbaar.\n\nCo-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

views/partials/flash.ejs

@@ -0,0 +1,12 @@
+<% if (success && success.length) { %>
+    <div class="alert alert-success" role="alert"><%= success[0] %></div>
+<% } %>
+<% if (error && error.length) { %>
+    <div class="alert alert-danger" role="alert"><%= error[0] %></div>
+<% } %>
+<% if (info && info.length) { %>
+    <div class="alert alert-info" role="alert"><%= info[0] %></div>
+<% } %>
+<% if (warning && warning.length) { %>
+    <div class="alert alert-warning" role="alert"><%= warning[0] %></div>
+<% } %>

views/partials/head.ejs

@@ -12,6 +12,12 @@
 href="https://cdn.jsdelivr.net/npm/@tabler/core@latest/dist/css/tabler.min.css"
 rel="stylesheet">
 
+<script>
+if ("serviceWorker" in navigator) {
+    navigator.serviceWorker.register("/service-worker.js", { updateViaCache: "none" });
+}
+</script>
+
 
 <link
 href="/css/style.css"

views/partials/navbar.ejs

@@ -8,6 +8,16 @@
 
 </a>
 
+<% if (user) { %>
+    <div class="navbar-nav flex-row ms-auto">
+        <a class="nav-link" href="/">Dashboard</a>
+        <a class="nav-link" href="/lists">Lijsten</a>
+        <a class="nav-link" href="/products">Producten</a>
+        <a class="nav-link" href="/household">Huishouden</a>
+        <a class="nav-link text-danger" href="/logout">Uitloggen</a>
+    </div>
+<% } %>
+
 
 </div>