Add migration 20260816_213455 covering the Tickets collection plus all schema drift accumulated since 20260109 (banking, market, game vehicles/NPCs, attendance, enum extensions).
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
