Login was only returning {id, email, name, role}, so localStorage.ls_user
never had avatar_url for sessions started before today — and the sidebar
fell back to initials forever. Fixes:
• login response now includes avatar_url
• renderNavAvatar detects 'undefined' (cache predates the field) vs
'null' (verified absent) and fires a one-shot /auth/me refresh in
the background, then re-paints. Self-healing for existing sessions
without forcing re-login.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Maxim Dolgolyov
eb19ce3cf9