- Add Drafts table (schema v4 migration) with autoincrement id,
accountId, replyToEmailId, to/cc/subject/body text, updatedAt
- DraftRepository interface + DraftRepositoryImpl (Drift)
- draftRepositoryProvider wired in di.dart
- ComposeScreen debounces saves (2 s after last keystroke), shows
transient "Saved" indicator, restores the latest matching draft on
open when no prefill fields are provided, deletes draft on send
- 6 new unit tests for DraftRepositoryImpl
- New widget test verifying draft restore behaviour
- FakeDraftRepository added to widget test helpers
- draft_repository.dart added to coverage no-code exclusion list
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
