Feature 5: Implement Bulk Actions (Admin Only)

Add comprehensive bulk operations system for admins:

- Created BulkOperationsModel.php with operation tracking and processing
- Added bulk_operation.php API endpoint for bulk operations
- Created get_users.php API endpoint for user dropdown in bulk assign
- Updated DashboardView.php with checkboxes and bulk actions toolbar
- Added JavaScript functions for:
  - Select all/clear selection
  - Bulk close tickets
  - Bulk assign tickets
  - Bulk change priority
- Added comprehensive CSS for bulk actions toolbar and modals
- All bulk operations are admin-only (enforced server-side)
- Operations tracked in bulk_operations table with audit logging
- Supports bulk_close, bulk_assign, and bulk_priority operations

Admins can now select multiple tickets and perform batch operations, significantly improving workflow efficiency.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

views/DashboardView.php

@@ -173,9 +173,26 @@
         </div>
     </div>
 
+    <?php if ($GLOBALS['currentUser']['is_admin'] ?? false): ?>
+    <div class="bulk-actions-toolbar" style="display: none;">
+        <div class="bulk-actions-info">
+            <span id="selected-count">0</span> tickets selected
+        </div>
+        <div class="bulk-actions-buttons">
+            <button onclick="bulkClose()" class="btn btn-bulk">Close Selected</button>
+            <button onclick="showBulkAssignModal()" class="btn btn-bulk">Assign Selected</button>
+            <button onclick="showBulkPriorityModal()" class="btn btn-bulk">Change Priority</button>
+            <button onclick="clearSelection()" class="btn btn-secondary">Clear Selection</button>
+        </div>
+    </div>
+    <?php endif; ?>
+
     <table>
         <thead>
             <tr>
+                <?php if ($GLOBALS['currentUser']['is_admin'] ?? false): ?>
+                    <th style="width: 40px;"><input type="checkbox" id="selectAllCheckbox" onclick="toggleSelectAll()"></th>
+                <?php endif; ?>
                 <?php
                 $currentSort = isset($_GET['sort']) ? $_GET['sort'] : 'ticket_id';
                 $currentDir = isset($_GET['dir']) ? $_GET['dir'] : 'desc';
@@ -209,6 +226,12 @@
                 foreach($tickets as $row) {
                     $creator = $row['creator_display_name'] ?? $row['creator_username'] ?? 'System';
                     echo "<tr class='priority-{$row['priority']}'>";
+
+                    // Add checkbox column for admins
+                    if ($GLOBALS['currentUser']['is_admin'] ?? false) {
+                        echo "<td><input type='checkbox' class='ticket-checkbox' value='{$row['ticket_id']}' onchange='updateSelectionCount()'></td>";
+                    }
+
                     echo "<td><a href='/ticket/{$row['ticket_id']}' class='ticket-link'>{$row['ticket_id']}</a></td>";
                     echo "<td><span>{$row['priority']}</span></td>";
                     echo "<td>" . htmlspecialchars($row['title']) . "</td>";
@@ -221,7 +244,8 @@
                     echo "</tr>";
                 }
             } else {
-                echo "<tr><td colspan='9'>No tickets found</td></tr>";
+                $colspan = ($GLOBALS['currentUser']['is_admin'] ?? false) ? '10' : '9';
+                echo "<tr><td colspan='$colspan'>No tickets found</td></tr>";
             }
             ?>
         </tbody>