Updated functionalities

app/templates/issues/view.html

@@ -31,7 +31,7 @@
           {% endif %}
 
           <dt class="col-sm-3">Assigned To</dt>
-          <dd class="col-sm-9">{{ issue.assigned_user.username if issue.assigned_user else '— Unassigned —' }}</dd>
+          <dd class="col-sm-9">{{ issue.assigned_user.display_name if issue.assigned_user else '— Unassigned —' }}</dd>
 
           {% if issue.resolved_at %}
           <dt class="col-sm-3">Resolved</dt>
@@ -75,7 +75,7 @@
         <hr>
         <div class="alert alert-success py-2 mb-0">
           <i class="bi bi-patch-check-fill me-1"></i>
-          <strong>Verified</strong> by {{ issue.verifier.username if issue.verifier else 'unknown' }}
+          <strong>Verified</strong> by {{ issue.verifier.display_name if issue.verifier else 'unknown' }}
           on {{ issue.verified_at.strftime('%Y-%m-%d %H:%M') }}.
           {% if issue.verification_note %}<br><span class="small">{{ issue.verification_note }}</span>{% endif %}
         </div>
@@ -112,7 +112,7 @@
         <li class="list-group-item">
           <div class="d-flex justify-content-between align-items-center mb-1">
             <span class="fw-semibold text-dark">
-              <i class="bi bi-person-circle"></i> {{ c.author.username }}
+              <i class="bi bi-person-circle"></i> {{ c.author.display_name }}
             </span>
             <span class="d-flex align-items-center gap-2">
               <span class="badge bg-{{ 'success' if c.status_at_time == 'resolved' else 'warning text-dark' if c.status_at_time == 'in_progress' else 'danger' }} rounded-pill" style="font-size:.65rem;">