chore: add TODO about potential use-after-free in get_capturer_for_display()

Signed-off-by: Steve3184 <77789906+Steve3184@users.noreply.github.com>

src/server/wayland.rs

@@ -369,6 +369,9 @@ pub(super) fn get_capturer_for_display(
         "get_capturer_for_display: no active capturers, reinitializing PipeWire session for display {}.",
         display_idx
     );
+    
+    // to-do: Potential use-after-free: clone() aliases raw pointer and clear() frees it.
+    // Requires ownership refactor to make lifetime sound.
     clear();
     ensure_inited()?;