feat(jobs): add cross-module fields to fp.job via _inherit (Task 2.2)

5 of the 6 deferred fields from Phase 1 Task 1.4 land here in
fusion_plating_jobs:
- part_catalog_id (fp.part.catalog from configurator)
- coating_config_id (fp.coating.config from configurator)
- customer_spec_id (fusion.plating.customer.spec from quality)
- portal_job_id (fusion.plating.portal.job from portal)
- delivery_id (fusion.plating.delivery from logistics)

qc_check_id deferred to Task 2.7 — its target model
(fusion.plating.quality.check) still lives in
fusion_plating_bridge_mrp and we don't depend on bridge_mrp from
this module. Task 2.7 will address QC sourcing.

6 unit tests (5 field-presence + 1 integration creating linked
records).

Manifest 19.0.1.0.0 → 19.0.1.1.0.

Part of: native job model migration (spec 2026-04-25)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

fusion_plating/fusion_plating_jobs/tests/__init__.py

@@ -0,0 +1,2 @@
+# -*- coding: utf-8 -*-
+from . import test_fp_job_extensions