Allow any printable ASCII character in usernames and sanitize invalid OIDC characters on user creation#3336

Draft

Copilot wants to merge 7 commits into

copilot/bugfix-oidc-usernames-banned-characters

Commits on May 7, 2026

Initial plan
Copilot
authored
Fix OIDC usernames by sanitizing invalid characters on user creation

Copilot
and
gantoine
authored
Address code review: pre-compile consecutive hyphens regex, add lazy import comment

Copilot
and
gantoine
authored