add flash messages back

templates/common/base.html

@@ -155,6 +155,21 @@
 
             <!-- Main Content -->
             <div class="col-md-9 col-lg-10 main-content">
+                <!-- Flash Messages -->
+                {% with messages = get_flashed_messages(with_categories=true) %}
+                    {% if messages %}
+                        <div class="container-fluid mt-3">
+                            {% for category, message in messages %}
+                                <div class="alert alert-{{ 'danger' if category == 'error' else category }} alert-dismissible fade show" role="alert">
+                                    <i class="fas fa-{{ 'exclamation-triangle' if category == 'error' or category == 'danger' else 'check-circle' if category == 'success' else 'info-circle' }} me-2"></i>
+                                    {{ message }}
+                                    <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+                                </div>
+                            {% endfor %}
+                        </div>
+                    {% endif %}
+                {% endwith %}
+                
                 {% block content %}{% endblock %}
             </div>
         </div>