Complete runtime service follow-ups and invisible subtitle edit mode

backlog/tasks/task-2.3 - Add-tests-for-mining-service.md

@@ -0,0 +1,45 @@
+---
+id: TASK-2.3
+title: Add tests for mining service
+status: Done
+assignee:
+  - codex
+created_date: '2026-02-10 18:56'
+updated_date: '2026-02-11 03:35'
+labels: []
+dependencies:
+  - TASK-2.1
+references:
+  - investigation.md
+  - src/core/services/mining-service.ts
+parent_task_id: TASK-2
+ordinal: 7000
+---
+
+## Description
+
+<!-- SECTION:DESCRIPTION:BEGIN -->
+Add dedicated behavior tests for `mining-service.ts` covering sentence/card mining orchestration and error boundaries.
+<!-- SECTION:DESCRIPTION:END -->
+
+## Acceptance Criteria
+<!-- AC:BEGIN -->
+- [x] #1 Happy-path behavior is covered for mining entry points.
+- [x] #2 Guard/early-return behavior is covered for missing runtime state.
+- [x] #3 Error paths are covered with expected logging/OSD behavior.
+- [x] #4 `pnpm run test:core` remains green.
+<!-- AC:END -->
+
+## Implementation Notes
+
+<!-- SECTION:NOTES:BEGIN -->
+Added `src/core/services/mining-service.test.ts` with focused coverage for:
+- `copyCurrentSubtitleService` guard and success behavior
+- `mineSentenceCardService` integration/connection guards and success path
+- `handleMultiCopyDigitService` history-copy behavior with truncation messaging
+- `handleMineSentenceDigitService` async error catch and OSD/log propagation
+
+Updated `package.json` `test:core` to include `dist/core/services/mining-service.test.js`.
+
+Verification: `pnpm run test:core` passed (20/20 after adding mining tests).
+<!-- SECTION:NOTES:END -->