Contract 9.14.0

An Evolution or Hero form newly unlocked is a timeline moment (#110). Until now the collection kept only which forms a card has, so an unlock passed silently.

• elixir_timeline has a new item kind, card_form_unlocked, in the collection section: facts carries card, card_id, rarity and form (evolution or hero), and the text reads "unlocked Hero Valkyrie". One item per form; kinds accepts it. at is the profile read that saw the unlock: it happened no later than that, and no earlier bound is served, because collectors skip a profile that has not changed.
• A player entry's collection carries forms_unlocked (as a player says them, capped like unlocked), and a player whose only news is a form unlock has an entry rather than a line in quiet.
• Recorded going forward from this release, never backfilled; a note says so on a window that begins before 2026-09-29. The milestone and tracking mails carry the moment too.

Additive.