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Greptile Summary

This PR fixes LDAP authentication lockout behavior by aligning it with the universal auth (UA) implementation pattern.

Key Changes:

• Moved lock acquisition from before auth attempt to after auth failure detection
• Lock is now only acquired when lockout is enabled and auth fails
• Successful auth attempts no longer compete for locks, eliminating timeout issues with valid requests
• Lockout state is checked early (before auth) to fail fast for already-locked accounts

Issues Found:

• Lock retry configuration differs from UA auth reference: uses infinite retries (retryCount: -1) instead of limited retries (retryCount: 3), which could cause auth requests to hang indefinitely

Confidence Score: 3/5

• This PR fixes a performance issue but introduces a potential hanging bug with infinite lock retries
• The refactoring correctly addresses the original problem (valid requests timing out) by following the UA auth pattern. However, the lock configuration deviates from the reference implementation with infinite retries instead of limited retries, which could cause auth requests to hang indefinitely under lock contention
• Pay attention to the lock acquisition parameters in backend/src/services/identity-ldap-auth/identity-ldap-auth-service.ts - the infinite retry configuration should be reviewed

Important Files Changed

_{Last reviewed commit: f2bf055}