fix: macOS visible-overlay blur no longer invokes Windows-only blur call

- Split win32/darwin branches in handleOverlayWindowBlurred so darwin visible blur returns early without calling onWindowsVisibleOverlayBlur
- Add regression test asserting Windows callback stays inactive on macOS visible overlay blur
- Close TASK-347

backlog/tasks/task-347 - Address-PR-57-CodeRabbit-review-round-after-stats-session-fix.md

@@ -1,11 +1,11 @@
 ---
 id: TASK-347
 title: Address PR 57 CodeRabbit review round after stats session fix
-status: In Progress
+status: Done
 assignee:
   - codex
 created_date: '2026-05-12 07:02'
-updated_date: '2026-05-12 07:02'
+updated_date: '2026-05-12 09:48'
 labels:
   - pr-review
   - coderabbit
@@ -13,6 +13,9 @@ labels:
 dependencies: []
 references:
   - 'https://github.com/ksyasuda/SubMiner/pull/57'
+modified_files:
+  - src/core/services/overlay-window-input.ts
+  - src/core/services/overlay-window.test.ts
 priority: high
 ---
 
@@ -24,10 +27,10 @@ Assess and address the 2026-05-12 CodeRabbit review on PR #57 plus the current r
 
 ## Acceptance Criteria
 <!-- AC:BEGIN -->
-- [ ] #1 Still-valid latest CodeRabbit findings on PR #57 are fixed or documented as skipped with rationale.
+- [x] #1 Still-valid latest CodeRabbit findings on PR #57 are fixed or documented as skipped with rationale.
-- [ ] #2 CI failure context is inspected and any repo-relevant failing tests or formatting issues are fixed.
+- [x] #2 CI failure context is inspected and any repo-relevant failing tests or formatting issues are fixed.
-- [ ] #3 Regression coverage is added for behavior changes where practical before production edits.
+- [x] #3 Regression coverage is added for behavior changes where practical before production edits.
-- [ ] #4 Relevant local verification passes.
+- [x] #4 Relevant local verification passes.
 <!-- AC:END -->
 
 ## Implementation Plan
@@ -37,4 +40,22 @@ Assess and address the 2026-05-12 CodeRabbit review on PR #57 plus the current r
 2. Add or update focused regression tests first for behavior changes: stats token aggregation, fullscreen refresh exit cancellation, Hyprland monitor parse failure, and title-only event filtering.
 3. Apply minimal production fixes for still-valid findings, plus the subtitle-render duplicate test coverage item.
 4. Run targeted tests first, then format/typecheck and broader relevant gates; update the task with results.
+
+Address latest CodeRabbit callback-scope finding: add regression coverage that macOS visible-overlay blur does not invoke onWindowsVisibleOverlayBlur, then split win32/darwin blur handling in src/core/services/overlay-window-input.ts.
 <!-- SECTION:PLAN:END -->
+
+## Implementation Notes
+
+<!-- SECTION:NOTES:BEGIN -->
+2026-05-12 09:47: Assessed latest PR #57 CodeRabbit comments via gh. Prior review findings in comments are marked addressed by CodeRabbit; latest still-actionable item was macOS visible-overlay blur invoking the Windows-only blur callback in overlay-window-input.ts.
+
+Added regression coverage showing macOS visible-overlay blur leaves onWindowsVisibleOverlayBlur inactive; test failed before production change and passed after splitting win32/darwin handling.
+
+Verification: bun test src/core/services/overlay-window.test.ts; bun run typecheck; git diff --check. PR checks: build-test-audit pass, GitGuardian pass, CodeRabbit pass/skipped, Claude skipped.
+<!-- SECTION:NOTES:END -->
+
+## Final Summary
+
+<!-- SECTION:FINAL_SUMMARY:BEGIN -->
+Addressed the latest CodeRabbit callback-scope review on PR #57. Windows visible-overlay blur still invokes onWindowsVisibleOverlayBlur and returns without restacking; macOS visible-overlay blur now returns without restacking and without invoking the Windows-only callback. Added focused regression coverage and verified targeted tests, typecheck, diff whitespace, and current PR checks.
+<!-- SECTION:FINAL_SUMMARY:END -->

src/core/services/overlay-window-input.ts

@@ -70,10 +70,13 @@ export function handleOverlayWindowBlurred(options: {
   platform?: NodeJS.Platform;
 }): boolean {
   const platform = options.platform ?? process.platform;
-  if ((platform === 'win32' || platform === 'darwin') && options.kind === 'visible') {
+  if (platform === 'win32' && options.kind === 'visible') {
     options.onWindowsVisibleOverlayBlur?.();
     return false;
   }
+  if (platform === 'darwin' && options.kind === 'visible') {
+    return false;
+  }
 
   if (options.kind === 'visible' && !options.isOverlayVisible(options.kind)) {
     return false;

src/core/services/overlay-window.test.ts

@@ -166,6 +166,29 @@ test('handleOverlayWindowBlurred skips macOS visible overlay restacking after fo
   assert.deepEqual(calls, []);
 });
 
+test('handleOverlayWindowBlurred leaves Windows callback inactive on macOS visible overlay blur', () => {
+  const calls: string[] = [];
+
+  const handled = handleOverlayWindowBlurred({
+    kind: 'visible',
+    windowVisible: true,
+    isOverlayVisible: () => true,
+    ensureOverlayWindowLevel: () => {
+      calls.push('ensure-level');
+    },
+    moveWindowTop: () => {
+      calls.push('move-top');
+    },
+    onWindowsVisibleOverlayBlur: () => {
+      calls.push('windows-visible-blur');
+    },
+    platform: 'darwin',
+  });
+
+  assert.equal(handled, false);
+  assert.deepEqual(calls, []);
+});
+
 test('handleOverlayWindowBlurred preserves active visible/modal window stacking', () => {
   const calls: string[] = [];