WIP lot S : Propositions seed (I1, E1, E2 ouvertes, cran 2), amendement gardé, publication suspendue sans article en vigueur

Travail en cours, sauvegardé à la demande d'orch : le moteur, le serveur et
tests/seed_proposals.rs (verts) ; les autres tests et les e2e ne sont pas
encore repris.

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

crates/ld-server/src/proposals.rs

@@ -570,7 +570,9 @@ pub async fn detail(
     let mut history = Vec::new();
     let mut previous: Option<&Rev> = None;
     for r in &revs {
+        // A change of status (a seed proposal, ADR 0011) changes no text: no diff.
         let diff = previous
+            .filter(|_| r.kind != "seed_proposal")
             .map(|prev| edit::diff(&format!("{}\n{}", prev.title, prev.body), &format!("{}\n{}", r.title, r.body)));
         let typo = r.typo_id.as_ref().map(|t| {
             json!({ "id": t, "answeredBy": r.answered_name, "deadline": r.answered_by.as_deref() == Some("deadline") })
@@ -601,7 +603,7 @@ pub async fn detail(
             "author": p.author_name, "authorInvited": p.author_invited.unwrap_or(false),
             "mine": p.author_id.as_deref() == Some(user.id.as_str()),
             "submittedAt": p.submitted_at, "enteredAt": p.entered_at, "confirmedAt": p.confirmed_at,
-            "seedMinimal": p.status == "in_force" && p.entered_at.is_none() && p.confirmed_at.is_none() && p.origin == "seed",
+            "seedMinimal": p.seed_minimal(), "seedProposal": p.seed_proposal(),
             "tally": st.shown_tally(&p.id), "evaluation": eval, "votedAtInertia": voted_at,
             "blocked": st.blocked.contains(&p.id), "votable": st.votable(&p),
             "myVote": my_vote.as_ref().map(|v| &v.choice),