upd: DefaultController (#25)

add database transfer capability

templates/default/sidebar.html.twig

@@ -25,6 +25,9 @@
                 <li><a href="#" onclick="saveNote()">Save Note</a></li>
                 {% if isAdmin is defined and isAdmin %}
                 <li><a href='/reference-editor'>Reference Editor</a></li>
+                {% if xferDB is defined and xferDB %}
+                <li><a href='/xfer-database'>Transfer Database</a></li>
+                {% endif %}
                 {% endif %}
                 <li><a href='#' onclick="openRef()">Open Reference</a></li>
                 <li><a href='/template-editor'>Template Editor</a></li>

templates/default/transfer_progress.html.twig

@@ -0,0 +1,24 @@
+{% extends 'base.html.twig' %}
+
+{% block body %}
+<div class="container mt-5 text-center">
+    <h2>Transferring Database...</h2>
+    <p>Processing: <strong>{{ current }}</strong></p>
+    
+    <div class="progress mb-3" style="height: 30px;">
+        <div class="progress-bar progress-bar-striped progress-bar-animated" 
+             role="progressbar" style="width: {{ progress }}%;">
+             {{ progress }}%
+        </div>
+    </div>
+
+    <p>Please do not close this window.</p>
+</div>
+
+<script>
+    // Automatically move to the next step after a short delay
+    setTimeout(() => {
+        window.location.href = "{{ path('app_admin_transfer_db', {step: next_step}) }}";
+    }, 500);
+</script>
+{% endblock %}

templates/default/transfer_summary.html.twig

@@ -0,0 +1,29 @@
+{% extends 'base.html.twig' %}
+
+{% block body %}
+<div class="container mt-5 text-center">
+    <h2 class="text-success">Database Transfer Complete!</h2>
+    <p>Your data has been successfully moved to the new database, and the environment variables have been updated.</p>
+
+    {% if logs|length > 0 %}
+        <div class="alert alert-warning text-start mx-auto" style="max-width: 600px;">
+            <h5 class="alert-heading">Data Clean-up Notice</h5>
+            <p>During the transfer, the following orphaned records were safely ignored to maintain database integrity:</p>
+            <ul>
+                {% for log in logs %}
+                    <li>{{ log }}</li>
+                {% endfor %}
+            </ul>
+        </div>
+    {% else %}
+        <div class="alert alert-success mx-auto" style="max-width: 600px;">
+            Perfect transfer! No orphaned records were found.
+        </div>
+    {% endif %}
+
+    <div class="mt-4">
+        <p class="text-muted">You must log in again to establish a connection with the new database.</p>
+        <a href="{{ path('app_logout') }}" class="btn btn-primary btn-lg">Acknowledge & Relogin</a>
+    </div>
+</div>
+{% endblock %}