fix(macos): drop target after grace period on repeated tracking misses

- registerTrackingMiss was resetting grace state on every miss, so focus was never released; now starts timer on first miss and drops after grace elapses
- update two tests to assert focus is dropped (not preserved) once grace expires
- add IPC test for setIgnoreMouseEvents → onOverlayMouseInteractionChanged mapping

src/core/services/ipc.test.ts

@@ -311,6 +311,28 @@ test('createIpcDepsRuntime wires AniList handlers', async () => {
   assert.equal(deps.getPlaybackPaused(), true);
 });
 
+test('registerIpcHandlers maps setIgnoreMouseEvents to overlay interaction active state', () => {
+  const { registrar, handlers } = createFakeIpcRegistrar();
+  const calls: string[] = [];
+
+  registerIpcHandlers(
+    createRegisterIpcDeps({
+      onOverlayMouseInteractionChanged: (active) => {
+        calls.push(`overlay-interaction:${active}`);
+      },
+    }),
+    registrar,
+  );
+
+  const handler = handlers.on.get(IPC_CHANNELS.command.setIgnoreMouseEvents);
+  assert.equal(typeof handler, 'function');
+
+  handler?.({}, true, { forward: true });
+  handler?.({}, false, {});
+
+  assert.deepEqual(calls, ['overlay-interaction:false', 'overlay-interaction:true']);
+});
+
 test('registerIpcHandlers runs AniList update after manual mark watched succeeds', async () => {
   const { registrar, handlers } = createFakeIpcRegistrar();
   const calls: string[] = [];

src/window-trackers/macos-tracker.test.ts

@@ -236,7 +236,7 @@ test('MacOSWindowTracker keeps focused fullscreen target through active helper m
   });
 });
 
-test('MacOSWindowTracker keeps previously focused target through repeated not-found misses after grace', async () => {
+test('MacOSWindowTracker drops previously focused target after repeated not-found misses exceed grace', async () => {
   let callIndex = 0;
   let now = 1_000;
   const focusChanges: boolean[] = [];
@@ -244,7 +244,6 @@ test('MacOSWindowTracker keeps previously focused target through repeated not-fo
     { stdout: '10,20,1280,720,1', stderr: '' },
     { stdout: 'not-found', stderr: '' },
     { stdout: 'not-found', stderr: '' },
-    { stdout: 'not-found', stderr: '' },
   ];
 
   const tracker = new MacOSWindowTracker('/tmp/mpv.sock', {
@@ -269,14 +268,6 @@ test('MacOSWindowTracker keeps previously focused target through repeated not-fo
   (tracker as unknown as { pollGeometry: () => void }).pollGeometry();
   await new Promise((resolve) => setTimeout(resolve, 0));
 
-  now += 1_000;
-  (tracker as unknown as { pollGeometry: () => void }).pollGeometry();
-  await new Promise((resolve) => setTimeout(resolve, 0));
-
-  now += 1_000;
-  (tracker as unknown as { pollGeometry: () => void }).pollGeometry();
-  await new Promise((resolve) => setTimeout(resolve, 0));
-
   assert.equal(tracker.isTracking(), true);
   assert.equal(tracker.isTargetWindowFocused(), true);
   assert.deepEqual(tracker.getGeometry(), {
@@ -286,9 +277,18 @@ test('MacOSWindowTracker keeps previously focused target through repeated not-fo
     height: 720,
   });
   assert.deepEqual(focusChanges, [true]);
+
+  now += 1_000;
+  (tracker as unknown as { pollGeometry: () => void }).pollGeometry();
+  await new Promise((resolve) => setTimeout(resolve, 0));
+
+  assert.equal(tracker.isTracking(), false);
+  assert.equal(tracker.isTargetWindowFocused(), false);
+  assert.equal(tracker.getGeometry(), null);
+  assert.deepEqual(focusChanges, [true, false]);
 });
 
-test('MacOSWindowTracker keeps previously focused target through repeated helper execution failures', async () => {
+test('MacOSWindowTracker drops previously focused target after repeated helper execution failures exceed grace', async () => {
   let callIndex = 0;
   let now = 1_000;
   const focusChanges: boolean[] = [];
@@ -323,15 +323,10 @@ test('MacOSWindowTracker keeps previously focused target through repeated helper
   (tracker as unknown as { pollGeometry: () => void }).pollGeometry();
   await new Promise((resolve) => setTimeout(resolve, 0));
 
-  assert.equal(tracker.isTracking(), true);
-  assert.equal(tracker.isTargetWindowFocused(), true);
-  assert.deepEqual(tracker.getGeometry(), {
-    x: 10,
-    y: 20,
-    width: 1280,
-    height: 720,
-  });
-  assert.deepEqual(focusChanges, [true]);
+  assert.equal(tracker.isTracking(), false);
+  assert.equal(tracker.isTargetWindowFocused(), false);
+  assert.equal(tracker.getGeometry(), null);
+  assert.deepEqual(focusChanges, [true, false]);
 });
 
 test('MacOSWindowTracker marks target unfocused on explicit inactive helper signal', async () => {

src/window-trackers/macos-tracker.ts

@@ -394,8 +394,13 @@ export class MacOSWindowTracker extends BaseWindowTracker {
 
   private registerTrackingMiss(graceMs = this.trackingLossGraceMs): void {
     if (this.shouldPreserveFocusedTargetOnMiss()) {
-      this.resetTrackingLossState();
-      return;
+      if (this.trackingLossStartedAtMs === null) {
+        this.trackingLossStartedAtMs = this.now();
+        return;
+      }
+      if (this.now() - this.trackingLossStartedAtMs <= graceMs) {
+        return;
+      }
     }
 
     this.consecutiveMisses += 1;