Improved toast notification system with queue management:
**Features Added**:
1. **Toast Queuing**:
- Multiple toasts no longer replace each other
- Toasts are queued and displayed sequentially
- Smooth transitions between queued messages
- Prevents message loss during rapid operations
2. **Manual Dismissal**:
- Click [×] button to dismiss toast immediately
- Useful for long-duration error messages
- Clears auto-dismiss timeout on manual close
- Next queued toast appears immediately after dismiss
3. **Queue Management**:
- Internal toastQueue[] array tracks pending messages
- currentToast reference prevents overlapping displays
- dismissToast() handles both auto and manual dismissal
- Automatic dequeue when toast closes
**Implementation**:
- displayToast() separated from showToast() for queue handling
- timeoutId stored on toast element for cleanup
- Close button styled with terminal aesthetic ([×])
- 300ms fade-out animation preserved
**Benefits**:
✓ No lost messages during bulk operations
✓ Better UX - users can dismiss errors immediately
✓ Clean queue management prevents memory leaks
✓ Maintains terminal aesthetic with minimal close button
Example: Bulk assign 10 tickets with 2 failures now shows:
1. "Bulk assign: 8 succeeded, 2 failed" (toast 1)
2. Next operation's message queued (toast 2)
3. User can dismiss or wait for auto-dismiss
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
