Rich HTML compose editor, multipart send, signatures, and compose visual polish.
Opt-in, F-Droid-safe bug reporting (client) and the Cloudflare ingest pipeline (server).
Correctness, testing, and cleanup follow-ups from the PR #54 folder-label de-duplication code review.
Everyday mailbox usability: unread visibility, list rendering correctness/performance, and message-action affordances.
First-run onboarding, vendor picker, account setup paths, and removal of the dead Gmail OAuth code.
System integration: mailto handling and default mail app.
Code audit, QA, store compliance (F-Droid/Play/Galaxy), release automation, and docs.
App lock / decrypt with screen lock and opt-in Android Backup.
Full-history mail fetch and configurable on-device retention.