WIP lot V : le tampon câblé dans le serveur (migration 0010, simulation, discard-simulation), tests en cours de reprise — repris tel quel après la coupure du 02/11

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

crates/ld-server/src/messages.rs

@@ -1,7 +1,8 @@
 //! The messages of trustinWallet (2026-10-31, lot F, ADR 0010): a box in the
 //! application, in the menu, with the number of unread messages — no mail.
 //!
-//! A message is about a subject (an objection, a typo fix) and carries the
+//! A message is about a subject (an objection, a typo fix, a ballot set aside —
+//! ADR 0012) and carries the
 //! gestures that subject asks of its recipient now — lift or reiterate,
 //! validate or refuse — and its deadline. A message dealt with offers no
 //! gesture any more. Its text is told by the interface, in the language of the
@@ -12,7 +13,7 @@
 use crate::AppState;
 use crate::auth::{IdentityRow, User};
 use crate::error::{AppError, AppResult};
-use crate::{docs, objections, typos, util};
+use crate::{ballots, docs, objections, typos, util};
 use axum::Json;
 use axum::extract::{Path, State};
 use serde_json::{Value, json};
@@ -24,6 +25,9 @@ const SHOWN: i64 = 100;
 pub enum Topic {
     Objection,
     Typo,
+    /// A ballot set aside: never seen on the chain in time, refused, or its *for*
+    /// proven while an objection held the version back (ADR 0012).
+    Ballot,
 }
 
 impl Topic {
@@ -31,6 +35,7 @@ impl Topic {
         match self {
             Self::Objection => "objection",
             Self::Typo => "typo",
+            Self::Ballot => "ballot",
         }
     }
 }
@@ -168,6 +173,10 @@ async fn view(state: &AppState, me: &IdentityRow, m: &MessageRow) -> AppResult<O
             Some((v, g)) => (json!({ "typo": v }), g),
             None => return Ok(None),
         },
+        "ballot" => match ballots::for_message(state, me, &m.subject_id).await? {
+            Some(v) => (json!({ "ballot": v }), Vec::new()),
+            None => return Ok(None),
+        },
         _ => return Ok(None),
     };
     let mut out = json!({