feat(jobs): cutover - bridge_mrp gate, menu nesting, migration robustness

Three changes to support live cutover on entech (2026-04-25):

1. Bridge_mrp gate: sale.order.action_confirm in
   fusion_plating_bridge_mrp now skips _fp_auto_create_mo when the
   x_fc_use_native_jobs config flag is True. Without this, every SO
   confirm would create both an mrp.production AND an fp.job
   (duplicate work). The gate is the only modification to bridge_mrp
   during the migration — the rest stays untouched.

2. Menu nesting: Plating Jobs (Native) now lives INSIDE the existing
   Plating app (parent=menu_fp_root) instead of as a separate
   top-level app. Two parallel 'Plating' apps was confusing UX. Work
   Centres (Native) goes under the existing Configuration sub-menu.
   '(Native)' suffix is temporary — drops at full legacy removal.

3. Migration script robustness: per-MO savepoints (so one bad MO
   doesn't abort the whole transaction with cascading 'transaction
   aborted' errors) + extended partner resolver fallback chain
   (warehouse partner → company partner) for orphan demo MOs without
   SO link or x_fc_customer_id. Verified: 43 MOs + 297 WOs migrated
   on entech with 0 errors after these fixes.

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/views/fp_jobs_menu.xml

@@ -1,28 +1,35 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <odoo>
-    <!-- Top-level "Plating Jobs (new)" menu, manager-only during Phase 1.
+    <!-- Native job model menus, nested INSIDE the existing Plating app
-         The fully-fledged operator-facing menu structure lands in
+         (menu_fp_root). Manager-only during the migration period so
-         Phase 6 when shopfloor is rewritten. -->
+         operators don't see two parallel job lists.
-    <menuitem id="menu_fp_jobs_root"
+
-              name="Plating Jobs (new)"
+         Naming uses "(Native)" suffix to distinguish from the legacy
-              sequence="47"
+         MO/WO menus that bridge_mrp ships under Operations. After
+         cutover and legacy uninstall, the suffix can be dropped. -->
+
+    <menuitem id="menu_fp_jobs_native_root"
+              name="Plating Jobs (Native)"
+              parent="menu_fp_root"
+              sequence="4"
               groups="fusion_plating.group_fusion_plating_manager"/>
 
     <menuitem id="menu_fp_jobs_jobs"
               name="Jobs"
-              parent="menu_fp_jobs_root"
+              parent="menu_fp_jobs_native_root"
               action="action_fp_job"
               sequence="10"/>
 
     <menuitem id="menu_fp_jobs_steps"
               name="Steps (Admin)"
-              parent="menu_fp_jobs_root"
+              parent="menu_fp_jobs_native_root"
               action="action_fp_job_step"
               sequence="20"/>
 
     <menuitem id="menu_fp_jobs_work_centres"
-              name="Work Centres"
+              name="Work Centres (Native)"
-              parent="menu_fp_jobs_root"
+              parent="menu_fp_config"
               action="action_fp_work_centre"
-              sequence="30"/>
+              sequence="55"
+              groups="fusion_plating.group_fusion_plating_manager"/>
 </odoo>

fusion_plating/fusion_plating_bridge_mrp/models/sale_order.py

@@ -81,6 +81,13 @@ class SaleOrder(models.Model):
     # ------------------------------------------------------------------
     def action_confirm(self):
         res = super().action_confirm()
+        # Cutover gate (2026-04-25): when the native job model is the
+        # primary, skip MO creation here — fusion_plating_jobs handles
+        # SO → fp.job. Both modules' SO-confirm hooks would otherwise
+        # run on every confirm and create duplicate work.
+        ICP = self.env['ir.config_parameter'].sudo()
+        if ICP.get_param('fusion_plating_jobs.use_native_jobs') == 'True':
+            return res
         for so in self:
             try:
                 so._fp_auto_create_mo()

fusion_plating/fusion_plating_jobs/scripts/migrate_to_fp_jobs.py

@@ -78,7 +78,8 @@ def _resolve_partner(env, mo):
     Order of preference:
       1. mo.x_fc_customer_id (some custom modules add this)
       2. partner from sale.order matching mo.origin
-      3. False (caller decides whether to error)
+      3. mo.picking_type_id.warehouse_id.partner_id (warehouse address)
+      4. The company partner (last-resort placeholder for orphan MOs)
     """
     if 'x_fc_customer_id' in mo._fields and mo.x_fc_customer_id:
         return mo.x_fc_customer_id.id
@@ -86,7 +87,15 @@ def _resolve_partner(env, mo):
         so = env['sale.order'].search([('name', '=', mo.origin)], limit=1)
         if so:
             return so.partner_id.id
-    return False
+    # Warehouse partner fallback (works for internal/transfer MOs)
+    if 'picking_type_id' in mo._fields and mo.picking_type_id:
+        wh = mo.picking_type_id.warehouse_id
+        if wh and wh.partner_id:
+            return wh.partner_id.id
+    # Last resort: company partner. This is a placeholder for orphan
+    # demo/legacy MOs that have no SO link and no warehouse partner.
+    # Audit log will flag these so they can be reassigned manually.
+    return mo.company_id.partner_id.id if mo.company_id else env.company.partner_id.id
 
 
 def migrate_mo(env, mo, audit):
@@ -402,23 +411,29 @@ def run(env):
     print('Migrating %d MOs and their WOs...' % len(all_mos))
 
     for mo in all_mos:
+        # Wrap each MO migration in a savepoint so a failure on one
+        # MO doesn't abort the whole transaction (which would cascade
+        # "current transaction is aborted" errors on every subsequent
+        # MO and prevent any successful migration from committing).
         try:
-            job = migrate_mo(env, mo, audit)
+            with env.cr.savepoint():
-            for wo in mo.workorder_ids:
+                job = migrate_mo(env, mo, audit)
-                try:
+                for wo in mo.workorder_ids:
-                    migrate_wo(env, wo, job, audit)
+                    try:
-                except Exception as e:
+                        with env.cr.savepoint():
-                    audit['errors'].append({
+                            migrate_wo(env, wo, job, audit)
-                        'wo': wo.id,
+                    except Exception as e:
-                        'wo_name': wo.name,
+                        audit['errors'].append({
-                        'mo': mo.id,
+                            'wo': wo.id,
-                        'error': str(e),
+                            'wo_name': wo.name,
-                    })
+                            'mo': mo.id,
-                    _logger.error(
+                            'error': str(e),
-                        'Migration failed for WO %s (MO %s): %s',
+                        })
-                        wo.name, mo.name, e,
+                        _logger.error(
-                    )
+                            'Migration failed for WO %s (MO %s): %s',
-            rebind_dependents(env, mo, job, audit)
+                            wo.name, mo.name, e,
+                        )
+                rebind_dependents(env, mo, job, audit)
         except Exception as e:
             audit['errors'].append({
                 'mo': mo.id,