feat: status dots, priority banners, lt-tags, command palette, activity timeline improvements

- Fix DashboardView asset version (was hardcoded 20260327, now uses config ASSET_VERSION)
- Add lt-dot status indicators on dashboard table rows and ticket view toolbar
- Add lt-tag display for Category/Type in ticket read mode (swaps to select in edit mode)
- Add P1/P2 SLA alert banner with elapsed time, progress bar, per-session dismiss
- Wire command palette (Ctrl+K): global nav + admin links via lt.cmdPalette.init()
- Fix cmdPalette.init() call format (flat array, not nested group objects)
- Improve activity timeline: richer formatAction(), better color coding by event type,
  inline status transitions shown in meta row, icon column added

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

assets/js/ticket.js

@@ -138,6 +138,10 @@ function toggleEditMode() {
         metadataFields.forEach(field => {
             field.classList.remove('lt-display-field');
         });
+
+        // Show edit-mode selects for category/type, hide their read-mode tags
+        document.querySelectorAll('.read-mode-tag').forEach(el => { el.style.display = 'none'; });
+        document.querySelectorAll('.edit-mode-field').forEach(el => { el.style.display = ''; });
     } else {
         saveTicket();
         editButton.textContent = 'Edit Ticket';
@@ -159,6 +163,22 @@ function toggleEditMode() {
         metadataFields.forEach(field => {
             field.classList.add('lt-display-field');
         });
+
+        // Hide edit-mode selects, show and update read-mode tags
+        document.querySelectorAll('.edit-mode-field').forEach(el => { el.style.display = 'none'; });
+        var catSel = document.getElementById('categorySelect');
+        var typSel = document.getElementById('typeSelect');
+        var catTag = document.getElementById('categoryTag');
+        var typTag = document.getElementById('typeTag');
+        if (catTag) {
+            if (catSel) catTag.textContent = catSel.options[catSel.selectedIndex].text;
+            catTag.style.display = '';
+        }
+        if (typTag) {
+            if (typSel) typTag.textContent = typSel.options[typSel.selectedIndex].text;
+            typTag.style.display = '';
+        }
+        document.querySelectorAll('.read-mode-tag:not(#categoryTag):not(#typeTag)').forEach(el => { el.style.display = ''; });
     }
 }