Initial Claude implementation

app/templates/_nav.html

@@ -0,0 +1,17 @@
+<header class="topbar">
+  <div class="brand"><a href="/">{{ app_name }}</a></div>
+  <nav>
+    <a href="/">Dashboard</a>
+    {% if user.is_superuser or "users:read" in user.permissions %}
+      <a href="/admin/users">Users</a>
+    {% endif %}
+    {% if user.is_superuser or "roles:read" in user.permissions %}
+      <a href="/admin/roles">Roles</a>
+    {% endif %}
+    <a href="/docs" target="_blank">API docs</a>
+  </nav>
+  <form method="post" action="/logout" class="logout">
+    <span class="muted">{{ user.email }}</span>
+    <button type="submit" class="btn btn-ghost">Sign out</button>
+  </form>
+</header>