The "Listes" button now attaches to both profile header layouts that LinkedIn currently serves, including the new card shown to Premium accounts. Until now, a profile served with that layout only showed a fallback banner instead of the button.

• Attachment is an ordered, closed list of two known header variants, each with its own insertion point and name lookup. A header painted after the initial render now replaces the banner with the button, without reloading the page.
• The fallback banner now says which extension it belongs to.
• The extension is named "Carnets" everywhere (manifest, overview window, banners).

No new permissions. Storage and data format are unchanged: existing lists and notes are preserved as-is.