v3 : neuvième relecture — noms uniques, places justes, quantités

- Noms des liens d'équipe : comparés sans casse, accents ni ponctuation
  (ld_engine::names), lettres latines seulement (pas de sosie cyrillique,
  grec ou pleine chasse), une ligne ; index unique (migration additive
  0003) contre deux ouvertures simultanées sous le même nom.
- Une personne déjà connectée ne prend une place que si le lien lui
  ajoute un groupe ; « Ce n'est pas moi » la déconnecte sur un navigateur
  partagé ; un lien collé dans le même onglet est relu.
- Coller ou couper un mot de quantité n'est pas une coquille
  (« sur tout » → « surtout », « par tout » → « partout »).
- Libellés sans caractère de contrôle ; la soumission revérifie le titre.

Boucle : 68 tests Rust, svelte-check, 9 vitest, e2e 13/13.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/src/lib/i18n/en.ts

@@ -66,6 +66,7 @@ export const en: Messages = {
   'team.join': 'Join',
   'team.signed': 'Your session is open under the name {name}: these groups are added to your identity.',
   'team.add': 'Add these groups',
+  'team.notme': "It's not me: sign out",
 
   'groups.title': 'My groups',
   'groups.same.key': 'Groups that use the same key',
@@ -287,7 +288,7 @@ export const en: Messages = {
   'access.invite.cancel': 'Cancel',
   'access.invite.pending': 'Pending',
   'access.team': 'Team links',
-  'access.team.intro': 'A link to share with a team, until a date. Each person who opens it gives their name and receives their own identity, never the administrator role.',
+  'access.team.intro': 'A link to share with a team, until a date. Each person who opens it gives their name and receives their own identity, never the administrator role. Revoking closes the link; people who already came keep their access, to be removed one by one.',
   'access.team.label': 'For which team',
   'access.team.days': 'Valid for how many days',
   'access.team.uses': 'How many people at most',
@@ -334,11 +335,11 @@ export const en: Messages = {
   'error.g1_not_configured': "Ğ1 sign-in isn't active yet.",
   'error.invitation_invalid': 'This invitation link is no longer valid.',
   'error.identity_kind': 'A new link can only be for an invited person, never a Ğ1 identity.',
-  'error.hidden_characters': 'The text contains invisible characters (writing-direction overrides, zero-width spaces): remove them.',
+  'error.hidden_characters': 'The text contains invisible characters (writing-direction override, zero-width space, soft hyphen, emoji colour selector…): remove them.',
   'error.changed': 'The text has changed in the meantime: reload it, then try again.',
   'error.wot_members_only': 'Here, only members of the Ğ1 web of trust vote.',
   'error.label': 'The name is empty or too long (60 characters at most).',
-  'error.name': 'Your name has 2 to 60 characters, with no invisible character.',
+  'error.name': 'Your name has 2 to 60 characters, on one line: letters, figures, spaces, hyphen, apostrophe or dot.',
   'error.name_taken': 'This name is already taken. Choose another one, adding an initial for instance.',
   'error.team_limits': 'A team link lasts 1 to 90 days, for 1 to 500 people.',
   'error.groups': 'Choose at least one group.',