Local dev Odoo is Community (can't install the module). Add a guest-exec runner
that syncs the module to the odoo-trial Enterprise sandbox (VM 316, db trial) and
runs --test-enable there; pass = FCB_EXIT=0. Scaffold verified installing on
Odoo 19.0 Enterprise (7 fusion_billing_* tables created).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
