Exclude pause/resume from undo; fix verify round-wrap false positive

togglePause no longer writes log entry (shared/turn.js). Lifecycle op, not
player action. Undo stack now targets last real action, not flag flip.
Removed dead pause/resume cases from expandUndo.

verify.js false positive: round wrap via non-nextTurn event (removeParticipant)
not detected — cycleActed never reset, actors flagged as acted_twice. Fix:
detect round change on ANY event, drain removed/inactive before finalize
(avoids false skipped when actor removed mid-round).

Tests updated: togglePause logging test asserts no log; undo test asserts
excluded. Repro confirmed via minimal verify case (removeParticipant r1->r2).

shared/tests/turn.logging.test.js

@@ -61,12 +61,11 @@ describe('Logging contract: mutating ops', () => {
     expectLastLogged(storage);
   });
 
-  test('togglePause logs', async () => {
+  test('togglePause does NOT log (lifecycle excluded from undo)', async () => {
     const e = enc([p('a', 10), p('b', 7), p('c', 3)]);
     const started = await startEncounter(e, ctx);
     await togglePause(started, ctx);
-    expect(storage.logs()).toHaveLength(2);
-    expectLastLogged(storage);
+    expect(storage.logs()).toHaveLength(1); // start only
   });
 
   test('addParticipant logs', async () => {