Mirror of fusion.plating.job.node.override from bridge_mrp, but
bound to fp.job. bridge_mrp's version stays alive for legacy MO
flow during the migration. Both coexist.
Adds override_ids One2many to fp.job via _inherit, plus
unique(job_id, node_id) constraint.
Note: spec-suggested _sql_constraints syntax is deprecated in
Odoo 19 ("Model attribute '_sql_constraints' is no longer
supported, please define model.Constraint on the model"). Used
the new class-attribute form: _unique_job_node = models.Constraint(...).
Verified the UNIQUE index is created on the table.
3 new tests: create, uniqueness, one2many backref.
Manifest 19.0.1.1.1 -> 19.0.1.2.0.
Part of: native job model migration (spec 2026-04-25)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>