diff --git a/server/src/pipeline_state.rs b/server/src/pipeline_state.rs
index fddb8d66..2911b3ea 100644
--- a/server/src/pipeline_state.rs
+++ b/server/src/pipeline_state.rs
@@ -223,10 +223,7 @@ pub enum PipelineEvent {
 
 #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
 pub enum TransitionError {
-    InvalidTransition {
-        from_stage: String,
-        event: String,
-    },
+    InvalidTransition { from_stage: String, event: String },
 }
 
 impl fmt::Display for TransitionError {
@@ -263,11 +260,23 @@ pub fn transition(state: Stage, event: PipelineEvent) -> Result<Stage, Transitio
         // ── Forward path ────────────────────────────────────────────────
         (Backlog, DepsMet) => Ok(Coding),
         (Coding, GatesStarted) => Ok(Qa),
-        (Coding, QaSkipped { feature_branch, commits_ahead }) => Ok(Merge {
+        (
+            Coding,
+            QaSkipped {
+                feature_branch,
+                commits_ahead,
+            },
+        ) => Ok(Merge {
             feature_branch,
             commits_ahead,
         }),
-        (Qa, GatesPassed { feature_branch, commits_ahead }) => Ok(Merge {
+        (
+            Qa,
+            GatesPassed {
+                feature_branch,
+                commits_ahead,
+            },
+        ) => Ok(Merge {
             feature_branch,
             commits_ahead,
         }),
@@ -507,10 +516,7 @@ pub enum ProjectionError {
     /// A required field is missing from the CRDT data.
     MissingField(&'static str),
     /// A field has an invalid value.
-    InvalidField {
-        field: &'static str,
-        detail: String,
-    },
+    InvalidField { field: &'static str, detail: String },
 }
 
 impl fmt::Display for ProjectionError {
@@ -575,8 +581,7 @@ fn project_stage(view: &PipelineItemView) -> Result<Stage, ProjectionError> {
             // at least one commit).
             Ok(Stage::Merge {
                 feature_branch: BranchName(branch),
-                commits_ahead: NonZeroU32::new(1)
-                    .expect("1 is non-zero"),
+                commits_ahead: NonZeroU32::new(1).expect("1 is non-zero"),
             })
         }
         "5_done" => {
@@ -1094,10 +1099,7 @@ mod tests {
         assert!(matches!(e, ExecutionState::Running { .. }));
 
         let e = execution_transition(e, ExecutionEvent::Exited { exit_code: 0 }).unwrap();
-        assert!(matches!(
-            e,
-            ExecutionState::Completed { exit_code: 0, .. }
-        ));
+        assert!(matches!(e, ExecutionState::Completed { exit_code: 0, .. }));
     }
 
     #[test]
@@ -1313,8 +1315,8 @@ mod tests {
 
     #[test]
     fn event_bus_fires_to_all_subscribers() {
-        use std::sync::atomic::{AtomicU32, Ordering};
         use std::sync::Arc;
+        use std::sync::atomic::{AtomicU32, Ordering};
 
         struct CountingSub(Arc<AtomicU32>);
         impl TransitionSubscriber for CountingSub {
@@ -1368,10 +1370,7 @@ mod tests {
             from_stage: "Backlog".into(),
             event: "Accepted".into(),
         };
-        assert_eq!(
-            err.to_string(),
-            "invalid transition: Backlog + Accepted"
-        );
+        assert_eq!(err.to_string(), "invalid transition: Backlog + Accepted");
     }
 
     // ── ProjectionError Display ─────────────────────────────────────────