Reported by: LionyxML (Reddit)

Add integration with newsticker (built-in RSS/Atom reader) to display images in news articles via Kitty graphics. Newsticker uses its own rendering for both the treeview and article view.

Approach:

• Investigate newsticker's image display mechanism (it may use shr for HTML content, which our existing advice might partially cover)
• Newsticker treeview uses a separate display path that may need its own integration
• Follow the existing pattern: with-eval-after-load 'newsticker + :around advice
• Test both newsticker-treeview and newsticker-plainview

Note from reporter: The per-mode integration architecture means each new mode needs explicit support. Consider whether a more generic hook (e.g., advising create-image or insert-image globally) could reduce this burden.