feat(numbering): wire NCR, CAPA, Hold, RMA into parent-numbered mixin

Hold derives parent via job_id.sale_order_id; RMA via sale_order_id
directly — both get HOLD-<parent> / RMA-<parent> names. NCR and CAPA
have no SO link in core, so they fall back to their legacy sequences
(NCR/YYYY/NNN, CAPA/YYYY/NNN); future modules can override the
_fp_parent_sale_order hook to enable parent naming.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

fusion_plating/fusion_plating_quality/models/fp_rma.py

@@ -36,7 +36,7 @@ _logger = logging.getLogger(__name__)
 class FpRma(models.Model):
     _name = 'fusion.plating.rma'
     _description = 'Fusion Plating — Return Material Authorisation'
-    _inherit = ['mail.thread', 'mail.activity.mixin']
+    _inherit = ['mail.thread', 'mail.activity.mixin', 'fp.parent.numbered.mixin']
     _order = 'create_date desc, id desc'
     _rec_name = 'name'
 
@@ -243,6 +243,17 @@ class FpRma(models.Model):
     # ------------------------------------------------------------------
     # Defaults / create / name
     # ------------------------------------------------------------------
+    # Parent-numbered mixin hooks. RMAs reach the SO directly via
+    # sale_order_id (set at create-time from the original order).
+    def _fp_parent_sale_order(self):
+        return self.sale_order_id
+
+    def _fp_name_prefix(self):
+        return 'RMA'
+
+    def _fp_parent_counter_field(self):
+        return 'x_fc_pn_rma_count'
+
     @api.model
     def _default_name(self):
         seq = self.env['ir.sequence'].next_by_code('fusion.plating.rma')
@@ -252,8 +263,19 @@ class FpRma(models.Model):
     def create(self, vals_list):
         for vals in vals_list:
             if not vals.get('name') or vals.get('name') == '/':
-                vals['name'] = self._default_name()
-        return super().create(vals_list)
+                vals['name'] = 'New'
+        records = super().create(vals_list)
+        for rec in records:
+            if rec.name and rec.name != 'New':
+                continue
+            if not rec._fp_assign_parent_name():
+                seq = self.env['ir.sequence'].next_by_code('fusion.plating.rma') or 'New'
+                self.env.cr.execute(
+                    "UPDATE fusion_plating_rma SET name = %s WHERE id = %s",
+                    (seq, rec.id),
+                )
+                rec.invalidate_recordset(['name'])
+        return records
 
     # ------------------------------------------------------------------
     # Computes