Decouple stats daemon and preserve final mine OSD status

- Run `subminer stats -b` as a dedicated daemon process, independent from the overlay app
- Stop Anki progress spinner before showing final `✓`/`x` mine result so it is not overwritten
- Keep grammar/noise subtitle tokens hoverable while stripping annotation metadata

backlog/tasks/task-195 - Keep-final-card-mine-OSD-result-from-being-overwritten-by-progress-spinner.md

@@ -0,0 +1,64 @@
+---
+id: TASK-195
+title: Keep final card-mine OSD result from being overwritten by progress spinner
+status: Done
+assignee:
+  - Codex
+created_date: '2026-03-18 19:40'
+updated_date: '2026-03-18 19:49'
+labels:
+  - anki
+  - ui
+  - bug
+milestone: m-1
+dependencies: []
+references:
+  - src/anki-integration/ui-feedback.ts
+  - src/anki-integration.ts
+  - src/anki-integration/card-creation.ts
+priority: medium
+ordinal: 105610
+---
+
+## Description
+
+<!-- SECTION:DESCRIPTION:BEGIN -->
+
+When a card mine finishes, the mpv OSD currently tries to show the final status text but the in-flight Anki progress spinner can immediately overwrite it on the next tick. Stop the spinner first, then show a single-line final result with a success/failure marker and the mined-word notification.
+
+<!-- SECTION:DESCRIPTION:END -->
+
+## Acceptance Criteria
+
+<!-- AC:BEGIN -->
+
+- [x] #1 Successful mine/update OSD results render after the spinner is stopped and do not get overwritten by a later spinner tick.
+- [x] #2 Failure results that replace the spinner show an `x` marker and stay visible on the same OSD line.
+- [x] #3 Regression coverage locks the spinner teardown/result-notification ordering.
+<!-- AC:END -->
+
+## Implementation Plan
+
+<!-- SECTION:PLAN:BEGIN -->
+
+1. Add a focused failing regression test around the Anki UI-feedback spinner/result helper.
+2. Add a helper that stops progress before emitting the final OSD result line with `✓`/`x`.
+3. Route mine/update result notifications through that helper, then run targeted verification.
+<!-- SECTION:PLAN:END -->
+
+## Outcome
+
+<!-- SECTION:OUTCOME:BEGIN -->
+
+Added a dedicated Anki UI-feedback result helper that force-clears the in-flight spinner state before emitting the final OSD result line. Successful card-update notifications now render as `✓ Updated card: ...`, and sentence-card creation failures now render as `x Sentence card failed: ...` without a later spinner tick reclaiming the line.
+
+Verification:
+
+- `bun test src/anki-integration/ui-feedback.test.ts`
+- `bun test src/anki-integration/ui-feedback.test.ts src/anki-integration/note-update-workflow.test.ts src/anki-integration.test.ts src/core/services/mining.test.ts src/main/runtime/mining-actions.test.ts`
+- `bun x prettier --check src/anki-integration/ui-feedback.ts src/anki-integration/ui-feedback.test.ts src/anki-integration.ts src/anki-integration/card-creation.ts "backlog/tasks/task-195 - Keep-final-card-mine-OSD-result-from-being-overwritten-by-progress-spinner.md" changes/2026-03-18-mine-osd-spinner-result.md`
+- `bun run changelog:lint`
+- `bash .agents/skills/subminer-change-verification/scripts/verify_subminer_change.sh --lane core src/anki-integration/ui-feedback.ts src/anki-integration/ui-feedback.test.ts src/anki-integration.ts src/anki-integration/card-creation.ts changes/2026-03-18-mine-osd-spinner-result.md`
+- Verifier artifacts: `.tmp/skill-verification/subminer-verify-20260318-194614-uZMrAx/`
+
+<!-- SECTION:OUTCOME:END -->