feat(jobs): add fp.work.centre native model

Replaces mrp.workcenter for plating. Domain-specific kinds
(wet_line/bake/mask/rack/inspect/other) drive release-ready
validation on steps. ACLs follow existing supervisor/manager
hierarchy.

Note: spec listed default_oven_id Many2one to fusion.plating.oven
but that model does not exist in core (the bake-oven model
fusion.plating.bake.oven lives in fusion_plating_shopfloor, which
core cannot depend on). Field omitted; the bridge that adds
fp.job/fp.job.step can re-introduce it via _inherit later.

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/tests/__init__.py

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

fusion_plating/fusion_plating/tests/test_fp_work_centre.py

@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+from odoo.tests.common import TransactionCase
+
+
+class TestFpWorkCentre(TransactionCase):
+    def test_create_work_centre_minimal(self):
+        wc = self.env['fp.work.centre'].create({
+            'name': 'Bath Line 1',
+            'code': 'BL1',
+            'kind': 'wet_line',
+        })
+        self.assertEqual(wc.name, 'Bath Line 1')
+        self.assertEqual(wc.kind, 'wet_line')
+        self.assertTrue(wc.active)
+
+    def test_facility_required_for_active_centre(self):
+        wc = self.env['fp.work.centre'].create({
+            'name': 'Test',
+            'code': 'T',
+            'kind': 'other',
+        })
+        self.assertFalse(wc.facility_id)
+
+    def test_kind_selection_values(self):
+        kinds = dict(
+            self.env['fp.work.centre']._fields['kind'].selection
+        )
+        for k in ('wet_line', 'bake', 'mask', 'rack', 'inspect', 'other'):
+            self.assertIn(k, kinds)