Redis lock prevents overlapping worker ticks; auth login retries on DB locked. Co-authored-by: Cursor <cursoragent@cursor.com>
Enable WAL/busy_timeout, retry writes, reject duplicate running jobs with HTTP 409, use bcrypt directly instead of broken passlib 1.7.4 + bcrypt 4.x, and improve UI errors.
Specs stay at repo root (cross-VM). Move deploy and code into logical projects with README per domain, updated manifest.yaml, and symlinks at legacy paths for VM122 backward compatibility.
