Odoo Upgrade (18 → 19)

Migrate custom modules AND their data to a new Odoo major version with runtime verification. This skill orchestrates existing tools first (official upgrade_code, OCA odoo-module-migrate, vendored MIT pattern references) and adds what none of them have: a generated breaking-change manifest, a semantic per-module brief, a runtime verify loop, and data-migration script templates built on odoo/upgrade-util.

Honesty contract (read first, applies to every phase)