Harden stats APIs and fix Electron Yomitan debug runtime

- Validate stats session IDs/limits and add AnkiConnect request timeouts
- Stabilize stats window/runtime lifecycle and tighten window security defaults
- Fix Electron CLI debug startup by unsetting `ELECTRON_RUN_AS_NODE` and wiring Yomitan session state
- Expand regression coverage for tracker queries/events ordering and session aggregates
- Update docs for stats dashboard usage and Yomitan lookup troubleshooting

backlog/tasks/task-175 - Address-latest-PR-19-review-comments.md

@@ -0,0 +1,33 @@
+---
+id: TASK-175
+title: Address latest PR 19 review comments
+status: In Progress
+assignee: []
+created_date: '2026-03-15 10:25'
+labels:
+  - pr-review
+  - stats-dashboard
+dependencies: []
+references:
+  - src/core/services/ipc.ts
+  - src/core/services/stats-server.ts
+  - src/core/services/immersion-tracker/__tests__/query.test.ts
+  - src/core/services/stats-window-runtime.ts
+  - src/core/services/stats-window.test.ts
+  - src/shared/ipc/contracts.ts
+  - src/main.ts
+priority: medium
+---
+
+## Description
+
+<!-- SECTION:DESCRIPTION:BEGIN -->
+Validate the latest automated review comments on PR #19 against the current branch, implement the technically valid fixes, and document any items intentionally left unchanged.
+<!-- SECTION:DESCRIPTION:END -->
+
+## Acceptance Criteria
+<!-- AC:BEGIN -->
+- [ ] #1 Validated the latest PR #19 review comments against current branch behavior and existing architecture
+- [ ] #2 Implemented the accepted fixes with regression coverage where it fits
+- [ ] #3 Documented which latest review items were intentionally not changed because they were already addressed or not technically warranted
+<!-- AC:END -->