feat(jobs): Phase 4 light refactors — notifications, KPI source tag

- Adds 'job_confirmed' and 'job_complete' trigger events to
  fp.notification.template (legacy 'mo_confirmed' / 'mo_complete'
  stay for bridge_mrp).
- fp.job.action_confirm and button_mark_done now fire those
  notifications best-effort via fp.notification.template._dispatch
  (silent skip if templates absent or notifications module missing).
- Adds x_fc_source ['mrp', 'jobs'] tag to fusion.plating.kpi.value
  so Phase 9 dashboards can filter or display both sources.
- Verified aerospace/nuclear/cgp/safety modules don't directly
  reference mrp.production or mrp.workorder.

Configurator integration was already covered by Task 2.5's SO
confirm hook (reads x_fc_part_catalog_id and x_fc_coating_config_id
from sale.order.line).

Manifest 19.0.1.6.0 -> 19.0.1.7.0.

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/models/fp_job.py

@@ -260,6 +260,7 @@ class FpJob(models.Model):
             job._fp_create_portal_job()
             job._fp_create_qc_check_if_needed()
             job._fp_create_racking_inspection()
+            job._fp_fire_notification('job_confirmed')
         return result
 
     def _fp_create_racking_inspection(self):
@@ -382,8 +383,43 @@ class FpJob(models.Model):
             job.date_finished = fields.Datetime.now()
             job._fp_create_delivery()
             job._fp_create_certificates()
+            job._fp_fire_notification('job_complete')
         return True
 
+    # ------------------------------------------------------------------
+    # Notifications dispatch (Phase 4)
+    #
+    # Fires fp.notification.template records whose trigger_event matches
+    # the given event name. Best-effort: silently skips if the
+    # fusion_plating_notifications module is not installed (model not
+    # registered) and logs (without raising) on any send failure so the
+    # job lifecycle is never blocked by an email problem.
+    # ------------------------------------------------------------------
+    def _fp_fire_notification(self, event):
+        """Best-effort notification dispatch for fp.job lifecycle events.
+
+        Looks up fp.notification.template records with the matching
+        trigger_event and dispatches via the central _dispatch helper
+        provided by fusion_plating_notifications. Silently no-ops when
+        that module isn't installed.
+        """
+        self.ensure_one()
+        if 'fp.notification.template' not in self.env:
+            return
+        Template = self.env['fp.notification.template'].sudo()
+        try:
+            # The notifications module exposes a model-level _dispatch
+            # helper that handles template lookup, recipient resolution
+            # (Sub 6 contact routing), attachment rendering, and audit
+            # logging in one go. Pass partner explicitly since fp.job's
+            # partner_id is the customer.
+            Template._dispatch(event, self, partner=self.partner_id)
+        except Exception as e:
+            _logger.warning(
+                "Job %s: notification %s dispatch failed: %s",
+                self.name, event, e,
+            )
+
     def _fp_create_delivery(self):
         """Create a draft fusion.plating.delivery linked to this job."""
         self.ensure_one()