## Summary
- Add combined `Enable and Load` and `Disable and Unload` controls to
Plugin Host Debug.
- Keep enablement persistence and runtime lifecycle changes in one
sequential store action.
- Add tests for ordering, busy state, and failure handling.
- Localize the new controls and fallback error messages in English and
Simplified Chinese.
## Verification
- `pnpm exec vitest run --config packages/stage-ui/vitest.config.ts
--project node src/stores/devtools/plugin-host-debug.test.ts`
- `pnpm -F @proj-airi/i18n test`
- `pnpm -F @proj-airi/i18n build`
- `pnpm run build:packages`
- `pnpm typecheck`
- `pnpm lint`
- Manually tested the bundled `devtools-sample-plugin` in the Electron
Plugin Host Debug page. Both combined actions updated the persisted
registry and runtime session state without restarting the app.
## Visual changes
| Before | After |
|---|---|
| 
| 
|
| Plugin Host Debug | Plugin Host Debug with combined lifecycle controls
|
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