Queue document writes durably and surface sync trouble in the UI

iCloud Drive writes now flow through a persistent WriteBacklog sidecar
(drained with backoff, flushed on backgrounding, wiped with the cache on
account change), so a save can never be lost to a transient coordinator
error. A status banner on the workout list surfaces stuck syncing.
Also: the split picker gains a Recent section with day labels, split
rows fold SplitItem into SplitListView, and list rows dim the multiply
sign in sets-by-reps.

Claude-Session: https://claude.ai/code/session_01HJDQQDA9QdP8zByg43H5v3

Workouts Watch App/Views/WorkoutLogListView.swift

@@ -19,10 +19,15 @@ struct WorkoutLogListView: View {
     /// race against the cache, which lags local writes by a beat.
     @State private var doc: WorkoutDocument
 
+    /// The live cache entity, kept only to observe `updatedAt` for the absorb
+    /// below — all rendering and editing goes through the `doc` snapshot.
+    private let workout: Workout
+
     @State private var showingExercisePicker = false
     @State private var selectedLogID: String?
 
     init(workout: Workout) {
+        self.workout = workout
         _doc = State(initialValue: WorkoutDocument(from: workout))
     }
 
@@ -94,6 +99,20 @@ struct WorkoutLogListView: View {
             }
         }
         .navigationTitle(doc.splitName ?? Split.unnamed)
+        // Absorb phone edits while this screen is open (H1's watch-side gap):
+        // without this, the snapshot stays frozen at init, and the next watch
+        // tick — made against a state that's missing the phone's edit — would be
+        // stamped fresh and clobber it wholesale on the phone. Strictly-newer
+        // guard only: an equal timestamp is our own edit echoing back through
+        // the phone's push, and a stale push in flight (the phone pushed before
+        // ingesting our latest edit) must not regress what the user is looking
+        // at. Clock skew across devices degrades this to a skipped absorb —
+        // never to a clobber of local state.
+        .onChange(of: workout.updatedAt) { _, incoming in
+            if incoming > doc.updatedAt {
+                doc = WorkoutDocument(from: workout)
+            }
+        }
         .navigationDestination(item: $selectedLogID) { logID in
             ExerciseProgressView(
                 doc: $doc,