v0.12.0 - Add modular system architecture with user-based module access

- Add Modules and UserModules database tables
- Create home page with module selection grid
- Implement per-user module assignment in user management
- Add route guards for module access control
- Refactor navigation: login -> home -> modules, admin console via button
- Add Font Awesome icons

templates/session_detail.html

@@ -6,7 +6,7 @@
 <div class="session-detail-container">
     <div class="session-detail-header">
         <div>
-            <a href="{{ url_for('dashboard') }}{% if count_session.status == 'archived' %}?show_archived=1{% endif %}" class="breadcrumb">← Back to Dashboard</a>
+            <a href="{{ url_for('admin_dashboard') }}{% if count_session.status == 'archived' %}?show_archived=1{% endif %}" class="breadcrumb">← Back to Dashboard</a>
             <h1 class="page-title">
                 {{ count_session.session_name }}
                 {% if count_session.status == 'archived' %}<span class="archived-badge">ARCHIVED</span>{% endif %}
@@ -694,7 +694,7 @@ function archiveSession() {
     .then(r => r.json())
     .then(data => {
         if (data.success) {
-            window.location.href = '{{ url_for("dashboard") }}';
+            window.location.href = '{{ url_for("admin_dashboard") }}';
         } else {
             alert(data.message || 'Error archiving session');
         }