New troubleshooting article for the recurring 'security wants to access
Claude Code-credentials' prompt that persists even after Always Allow
(ACL invalidation on binary-signature change / token refresh / post-boot
churn). Covers triage, the reset-and-relogin fix, and the file-based
credentials workaround with its plaintext tradeoff. Registered in
SUMMARY + troubleshooting index; cross-linked with the corrupt-credential
login-failure article (distinct symptom).