- normalize username into lowercase (this is already ASCII only)
- permit users to login with their username with insensitive case
- if a disabled account is reactivated and got a collision, it will normalize it too
- server will stop on collision (ex: 2 entries with `Alice` and `alice`)
in a such case admin can run:
```
oxicloud migrate lowercase-usernames --dry-run
```
then
```
oxicloud migrate lowercase-usernames
```
Records the design for issue #691 (make usernames case-insensitive):
silently lowercase on ingest, explicit `oxicloud migrate
lowercase-usernames [--dry-run]`, refuse-to-boot until DB is fully
lowercase. Includes the chunked-upload directory rename step and the
OIDC JIT lowercase fix surfaced during the design sweep.
Design deferred pieces (display_name split, WebDAV URL redesign) are
listed under "Not in scope" so the boundary is explicit.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Edouard Vanbelle