Safer sign-in and cleaner notes.
• Connecting the extension is now sealed end to end: the Lexpad web page hands the extension its session encrypted to a key only the extension holds, so no other script on the page can read it.
• The "Seen on" note saved with a word keeps only the page's address, never query strings or fragments (for example ?token=… or #…).
• Nothing else changes: same permissions, same features.

A word now lands in the notebook whose writing system it belongs to.

The notebook you pick in the popup still wins, except where the word could
not possibly be in that language — a Persian word is not filed into an
English notebook in silence. The card says where the word went.

When no notebook takes that script, the card says so instead of offering a
button that would refuse.