Disable Nextcloud's bruteforce protection and rate limiting via a new
post-installation hook, preventing 429 errors during repeated DCR calls
in CI. Add warning-level logging to all 8 error paths in the AS proxy
token endpoint to make login-flow 400 errors diagnosable.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Chris Coutinho