A turn's reel is exactly a turn

The window's straddle commands hold more than the turn they open and
close: the opener carries the previous wizard's last draws, the closer
the next wizard's first upkeep — so every instant replay ran on into
the following turn (and, with the camera now following the turn-taker,
jumped into the next wizard's head for the overrun). momentSteps trims
both straddles at the boundary events: the reel opens on "X's turn
begins" and stops at X's turnEnded, keeping only what belongs to X.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

packages/server/src/rooms.ts

@@ -464,9 +464,21 @@ export function momentSteps(room: Room, playerId: PlayerId, turnIndex: number):
     if (!result.ok) return { error: `replay diverged at seq ${entry.seq}` };
     current = result.state;
     const before = counter;
-    for (const e of result.events) bump(e);
+    // The straddle commands hold more than this turn: the opener carries
+    // the previous wizard's last breaths, the closer the NEXT wizard's
+    // first. Trim both so the reel is exactly one turn — it opens on
+    // "X's turn begins" and stops at X's turnEnded.
+    let sliceStart = 0;
+    let sliceEnd = result.events.length;
+    result.events.forEach((e, i) => {
+      if (!TURN_BOUNDARY.has(e.type)) return;
+      bump(e);
+      if (counter === turnIndex && before < turnIndex) sliceStart = i;
+      if (counter === turnIndex + 1 && sliceEnd === result.events.length) sliceEnd = i;
+    });
     if (before > turnIndex) break;
     if (before <= turnIndex && turnIndex <= counter) {
+      const kept = result.events.slice(sliceStart, sliceEnd);
       const prevAt = entry.seq > 0 ? room.log[entry.seq - 1]!.at : "";
       const said = room.chat
         .filter((c) => c.at > prevAt && c.at <= entry.at)
@@ -474,7 +486,7 @@ export function momentSteps(room: Room, playerId: PlayerId, turnIndex: number):
       steps.push({
         seq: entry.seq,
         actor: entry.playerId,
-        events: redactFor(result.events, playerId),
+        events: redactFor(kept, playerId),
         view: viewFor(current, playerId),
         ...(said.length > 0 ? { chat: said } : {}),
       });