SysAdmin e5eacd8725 fix(developers): check username on blur instead of keystroke to avoid rate limiting ...

SilverDESK rate-limits /api/auth/check-username after ~2 requests with a
5-minute cooldown. The old 500ms debounce per keystroke quickly exhausted
this limit, breaking the form. Now checks only on field blur, validates
format client-side while typing, and caches results to skip redundant calls.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-02-22 18:10:04 +00:00

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