Fix: Multiple UI and functionality improvements

Fixed all reported issues:

1. **Dark Mode Improvements:**
   - Fixed bulk-actions-info white on white text (now yellow on dark background)
   - Fixed timeline-content boxes with explicit dark mode colors
   - All text now properly visible in dark mode

2. **Dashboard Enhancement:**
   - Added "Assigned To" column showing ticket assignments
   - Updated TicketModel query to include assigned user information
   - Shows "Unassigned" when no user assigned

3. **Removed Ticket View Tracking:**
   - Removed logTicketView call from TicketController
   - Created migration 011 to delete all view records from audit_log
   - Viewing tickets no longer clutters activity timeline

4. **Removed Duplicate Status Dropdown:**
   - Removed status field from hamburger menu
   - Status can now only be changed via the workflow-validated dropdown in ticket header
   - Prevents confusion and ensures all status changes follow workflow rules

All changes improve usability and reduce clutter.

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

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

assets/js/dashboard.js

@@ -403,22 +403,6 @@ function createHamburgerMenu() {
                 <div class="close-hamburger">☰</div>
                 <h3>Ticket Actions</h3>
                 <div class="ticket-info-editable">
-                    <div class="editable-field" data-field="status">
-                        <label><strong>Status:</strong></label>
-                        <span class="editable-value" data-current="${window.ticketData.status}">${window.ticketData.status}</span>
-                        <div class="edit-dropdown" style="display: none;">
-                            <select class="field-select">
-                                <option value="Open" ${window.ticketData.status === 'Open' ? 'selected' : ''}>Open</option>
-                                <option value="In Progress" ${window.ticketData.status === 'In Progress' ? 'selected' : ''}>In Progress</option>
-                                <option value="Closed" ${window.ticketData.status === 'Closed' ? 'selected' : ''}>Closed</option>
-                            </select>
-                            <div class="edit-actions">
-                                <button class="save-btn">✓</button>
-                                <button class="cancel-btn">✗</button>
-                            </div>
-                        </div>
-                    </div>
-                    
                     <div class="editable-field" data-field="priority">
                         <label><strong>Priority:</strong></label>
                         <span class="editable-value" data-current="${window.ticketData.priority}">P${window.ticketData.priority}</span>