Merge branch 'settle-queue-to-driver' into driver-settle-queue-tests

# Conflicts:
#	crates/driver/src/domain/competition/mod.rs

crates/driver/src/domain/competition/mod.rs

@@ -298,13 +298,6 @@ impl Competition {
             let _ = tokio::time::timeout(remaining, simulate_on_new_blocks).await;
         }
 
-        // Check the settlement queue only here since its capacity can change while
-        // processing solutions.
-        if self.settle_queue.capacity() == 0 {
-            tracing::warn!("settlement queue is full; auction is rejected");
-            return Err(Error::TooManyPendingSettlements);
-        }
-
         Ok(score)
     }
 
@@ -364,6 +357,15 @@ impl Competition {
         })?
     }
 
+    pub fn ensure_settle_queue_capacity(&self) -> Result<(), Error> {
+        if self.settle_queue.capacity() == 0 {
+            tracing::warn!("settlement queue is full; auction is rejected");
+            Err(Error::TooManyPendingSettlements)
+        } else {
+            Ok(())
+        }
+    }
+
     async fn process_settle_requests(
         self: Arc<Self>,
         mut settle_receiver: mpsc::Receiver<SettleRequest>,

crates/driver/src/infra/api/routes/solve/mod.rs

@@ -37,6 +37,7 @@ async fn route(
             .prioritize(auction, &competition.solver.account().address())
             .await;
         let result = competition.solve(&auction).await;
+        competition.ensure_settle_queue_capacity()?;
         observe::solved(state.solver().name(), &result);
         Ok(axum::Json(dto::Solved::new(result?, &competition.solver)))
     };