feat: saved filter pills, mention autocomplete CSS, tooltips on dashboard table

- Dashboard: saved filter pills row above active filters bar — loads from API,
  click applies criteria as URL params, hidden when no saved filters exist
- ticket.css: add TDS-styled CSS for @mention autocomplete dropdown (was unstyled)
- Dashboard table: data-tooltip on Title and Assigned To columns for truncated text
  (lt.tooltip.init() auto-called by lt.init(), zero extra JS needed)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

views/DashboardView.php

@@ -365,6 +365,9 @@ include __DIR__ . '/layout_header.php';
       </div>
     </div><!-- /.lt-toolbar -->
 
+    <!-- Saved filter quick-switch pills -->
+    <div id="savedFilterPills" class="saved-filter-pills lt-flex lt-flex-wrap lt-flex-gap-sm" style="display:none;padding:0.35rem 0 0.1rem" aria-label="Saved filters"></div>
+
     <!-- Active filters bar -->
     <?php if (!empty($activeFilters)): ?>
     <div class="active-filters-bar lt-flex lt-flex-wrap lt-flex-gap-sm" role="group" aria-label="Active filters">
@@ -502,7 +505,9 @@ include __DIR__ . '/layout_header.php';
                     <?php $badgeClass = match($pNum) { 1 => 'lt-badge-p1', 2 => 'lt-badge-p2', 3 => 'lt-badge-p3', default => 'lt-badge-p4' }; ?>
                     <span class="lt-badge <?= $badgeClass ?>">P<?= $pNum ?></span>
                   </td>
-                  <td data-label="Title"><?= htmlspecialchars($row['title']) ?></td>
+                  <td data-label="Title" style="max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap">
+                    <span data-tooltip="<?= htmlspecialchars($row['title'], ENT_QUOTES, 'UTF-8') ?>" data-tooltip-pos="top"><?= htmlspecialchars($row['title']) ?></span>
+                  </td>
                   <td data-label="Category" class="lt-text-muted lt-text-xs"><?= htmlspecialchars($row['category']) ?></td>
                   <td data-label="Type" class="lt-text-muted lt-text-xs"><?= htmlspecialchars($row['type']) ?></td>
                   <td data-label="Status">
@@ -518,7 +523,12 @@ include __DIR__ . '/layout_header.php';
                   </td>
                   <td data-label="Created By" class="lt-text-xs"><?= $creator ?></td>
                   <td data-label="Assigned To" class="lt-text-xs">
-                    <?= ($row['assigned_display_name'] ?? $row['assigned_username'] ?? null) ? $assignedTo : '<span class="lt-text-muted">Unassigned</span>' ?>
+                    <?php $assigneeDisplay = $row['assigned_display_name'] ?? $row['assigned_username'] ?? null; ?>
+                    <?php if ($assigneeDisplay): ?>
+                      <span data-tooltip="<?= htmlspecialchars($assigneeDisplay, ENT_QUOTES, 'UTF-8') ?>"><?= htmlspecialchars($assigneeDisplay) ?></span>
+                    <?php else: ?>
+                      <span class="lt-text-muted">Unassigned</span>
+                    <?php endif ?>
                   </td>
                   <td data-label="Created" class="lt-text-xs lt-text-muted ts-cell"
                       data-ts="<?= htmlspecialchars($row['created_at'], ENT_QUOTES, 'UTF-8') ?>"
@@ -916,6 +926,46 @@ if (window.lt) {
     lt.statsFilter.init();
 }
 
+// Saved filter pills — load on page init
+(function() {
+    lt.api.get('/api/saved_filters.php').then(function(data) {
+        if (!data.success || !data.filters || !data.filters.length) return;
+        var pillsWrap = document.getElementById('savedFilterPills');
+        if (!pillsWrap) return;
+        var html = '<span class="lt-text-xs lt-text-muted" style="align-self:center">Saved:</span>';
+        data.filters.slice(0, 8).forEach(function(f) {
+            var criteria = JSON.stringify(f.filter_criteria);
+            html += '<button type="button" class="lt-btn lt-btn-ghost lt-btn-sm saved-filter-pill" ' +
+                    'data-criteria="' + lt.escHtml(criteria) + '" ' +
+                    'title="Apply saved filter: ' + lt.escHtml(f.filter_name) + '">' +
+                    lt.escHtml(f.filter_name) +
+                    (f.is_default ? ' <span style="color:var(--accent-amber)">&#x2605;</span>' : '') +
+                    '</button>';
+        });
+        pillsWrap.innerHTML = html;
+        pillsWrap.style.display = 'flex';
+
+        // Wire clicks: apply filter criteria as URL params
+        pillsWrap.querySelectorAll('.saved-filter-pill').forEach(function(btn) {
+            btn.addEventListener('click', function() {
+                try {
+                    var c = JSON.parse(btn.dataset.criteria);
+                    var params = new URLSearchParams();
+                    if (c.search)    params.set('search', c.search);
+                    if (c.status && c.status.length)   params.set('status', c.status.join(','));
+                    if (c.priority_min) params.set('priority_min', c.priority_min);
+                    if (c.priority_max) params.set('priority_max', c.priority_max);
+                    if (c.assigned_to)  params.set('assigned_to', c.assigned_to);
+                    if (c.created_by)   params.set('created_by', c.created_by);
+                    if (c.created_from) params.set('created_from', c.created_from);
+                    if (c.created_to)   params.set('created_to', c.created_to);
+                    window.location.href = '/?' + params.toString();
+                } catch(e) {}
+            });
+        });
+    }).catch(function() {});
+})();
+
 // Helper: get date in server timezone
 function getServerDate() {
     var now = new Date();