Fusion de chantier/acte-certification (lots H et S) dans le lot V : le tampon et ses états, avec le quorum et les Propositions seed

- conflits résolus des deux côtés : kept_params garde le quorum (S) et la part simulée, la version déplacée, le cran d'avant (V) ; proposals.rs garde seedMinimal / seedProposal (S) et tallyPending / tallySimulated / myVoteState (V) ;
- simulation::reexamine juge sur le quorum gardé par l'adoption (params.quorum, à défaut celui de l'article) ;
- l'acte répété n'examine plus une adoption qui tient (params.reexamined) ;
- tests V repris sans texte en vigueur au départ (I1, E1 : la Proposition seed) et sur un quorum 2 (small_web) ; le test overview d'une personne invitée dans Monnaie libre suit la simulation (elle vote, chaîne fermée).

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

crates/trustin-access/src/lib.rs

@@ -27,6 +27,9 @@
 //! - while the chain is closed, the vote is simulated: whoever may ask for a
 //!   ballot votes on the server, marked as simulated — `casts_simulated`
 //!   (2026-11-02, lot V, ADR 0012).
+//! - the quorum of an article is set by the author of its first version — for a
+//!   text of the seed, by an administrator — and only before the first vote —
+//!   `sets_quorum` (2026-11-03, ADR 0013).
 
 use serde::{Deserialize, Serialize};
 
@@ -197,6 +200,24 @@ pub fn reads_message(identity: &Identity, recipient: &str) -> bool {
     identity.id == recipient
 }
 
+/// Who sets the quorum of an article (Yvv, 2026-11-02: « L'auteur, avant le 1er vote »,
+/// ADR 0013): the author of its first version; for an article without author (a text of
+/// the seed), an administrator of trustinWallet — never one for an author. Once a vote
+/// exists on the article (`voted`, the server's `quorum::a_vote_exists`), nobody: the
+/// votes cast were judged on it.
+pub fn sets_quorum(identity: &Identity, first_author: Option<&str>, voted: bool) -> bool {
+    if voted {
+        return false;
+    }
+    match first_author {
+        Some(author) => identity.id == author,
+        None => identity.admin,
+    }
+}
+
+/// The test group: hidden, the quorum 1 at every level — the one place one voice passes.
+pub const TEST_GROUP: &str = "essai";
+
 /// The groups a fresh deployment starts with. Ordered as displayed.
 pub fn default_groups() -> Vec<Group> {
     let g = |slug: &str, name: &str, parent: Option<&str>, policy, hidden| Group {
@@ -217,7 +238,7 @@ pub fn default_groups() -> Vec<Group> {
             GroupPolicy::Managed,
             false,
         ),
-        g("essai", "Groupe d'essai", None, GroupPolicy::Managed, true),
+        g(TEST_GROUP, "Groupe d'essai", None, GroupPolicy::Managed, true),
     ]
 }
 
@@ -335,6 +356,20 @@ mod tests {
         assert!(!lifts_objection(&other, "luna") && !reiterates_objection(&other, "luna"));
     }
 
+    #[test]
+    fn the_author_sets_the_quorum_before_the_first_vote_an_administrator_for_the_seed() {
+        let chiara = Identity { id: "chiara".into(), ..who(IdentityKind::Invite, false, false) };
+        let admin = Identity { id: "yvv".into(), ..who(IdentityKind::G1, true, true) };
+        let other = Identity { id: "luna".into(), ..who(IdentityKind::G1, true, false) };
+        assert!(sets_quorum(&chiara, Some("chiara"), false));
+        assert!(!sets_quorum(&chiara, Some("chiara"), true), "after the first vote, nobody");
+        assert!(!sets_quorum(&other, Some("chiara"), false));
+        assert!(!sets_quorum(&admin, Some("chiara"), false), "an administrator never sets it for an author");
+        assert!(sets_quorum(&admin, None, false), "a text of the seed: an administrator");
+        assert!(!sets_quorum(&admin, None, true));
+        assert!(!sets_quorum(&other, None, false));
+    }
+
     #[test]
     fn a_message_is_read_by_its_recipient_only() {
         let admin = Identity { id: "yvv".into(), ..who(IdentityKind::G1, true, true) };