v0.2.2

Release notes — mysql-aiops 0.2.2

Previous release: 0.2.1.

Live-verified: MariaDB

No behaviour changes. The MariaDB flavor branch was the largest verification debt in
this repo and had never been run against a live server. It has now been exercised
against MariaDB 11.8.8:

• Flavor correctly detected as mariadb; the MariaDB-specific paths
  (SHOW SLAVE STATUS, information_schema.innodb_lock_waits) execute and return
  well-shaped data.
• analyze lock-waits on real contention: with two transactions deliberately
  fighting over one row, it correctly identified the root blocker (the session
  holding locks while waiting on nobody), the blocked session, an 18-second measured
  wait, and named the exact tools to resolve it.
• With performance_schema = OFF, doctor reports it as a limitation and says how
  to enable it — no driver traceback, exactly as the checklist requires.
• All 16 commands return well-formed JSON, including the Decimal aggregate path
  fixed in 0.2.1.

See docs/VERIFICATION.md. Replication against a real replica
remains unverified.