Give accounts a user-controlled order (issue #164). Every surface that
lists accounts -- the Settings list, the drawer account switcher, and the
compose account picker -- reads the same `ORDER BY sortOrder` query, so a
reorder in Settings is honored app-wide. In Settings a row can be
long-pressed and dragged to a new position; the order persists and
survives restart.
Data layer:
- AccountEntity gains `sortOrder` (@ColumnInfo defaultValue "0"); AccountDao
orders by it and adds insertAtEnd / reorder / nextSortOrder / setSortOrder,
the mutations wrapped in transactions.
- New accounts are appended (current max + 1) via insertAtEnd.
Migration (AccountDatabase v1 -> v2):
- ACCOUNT_MIGRATION_1_2 adds the column and backfills existing accounts by
their previous alphabetical (email) rank, so the already-shown order does
not shuffle on upgrade. Registered in AccountDatabaseModule; 2.json is
exported and AccountMigrationTest replays and validates it.
- AccountDataMigrator (the pre-#111 cache->account-db move) creates the
v2-shaped table and applies the same email-rank backfill, since
ACCOUNT_MIGRATION_1_2 does not run for that path.
UI:
- AccountReorderList drives long-press drag over a plain Column (no nested
lazy list inside the scrolling settings column, no extra dependency); the
pure reorder-index maths (commitDrag) is unit-tested.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
JMR-devandClaude Opus 4.8
9a69d175a8