* test: add E2E test for clearing sent items
Add clear-sent.spec.ts verifying:
- Send a mail → verify it appears in sendbox → clear sent items → verify sendbox is empty
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* test: remove unused address variable
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>