feat(plating): Sub 5 — order-line fields (serial, job#, thickness, revision)

Four new fields on every sale.order.line, propagated through to MO,
Delivery, and Invoice for end-to-end traceability:

- fp.serial registry (new model in configurator) with smart-button
  traceability to Sale Order, MO, Delivery, Invoice, Part. M2O on SO
  line; optional; user types a customer serial or clicks Generate
  Serial for a sequence-backed one. Reverse O2M links split across
  configurator (invoice) / bridge_mrp (MO) / logistics (delivery) so
  module load order is respected.
- x_fc_job_number on SO line, auto-sequenced FP-JOB-NNNNN on SO
  confirm. Editable — shops can override for customer/legacy schemes.
- fp.coating.thickness (new child of fp.coating.config) with per-
  config discrete thickness options; x_fc_thickness_id on SO line
  domain-filtered to the line's coating. Auto-clears when coating
  changes.
- x_fc_revision_snapshot Char on SO line, frozen from
  x_fc_part_catalog_id.revision at save. Protects historical SOs from
  later catalog edits. Secondary "Revision" picker on the tree view
  lets users switch between prior revisions of the same part number;
  the Part M2O still surfaces only is_latest_revision rows.

Reports (CoC, packing slip, invoice, BoL) pick up all four via the
Sub 2 customer_line_header macro — one macro edit, four reports.

Smoke on entech: 11 assertions pass including revision snapshot,
generate-serial button, typed-serial create-on-fly, coating→thickness
domain reset, SO confirm auto job#, and MO traceability carry.

Module version bumps:
  fusion_plating_configurator  → 19.0.12.0.0
  fusion_plating_bridge_mrp    → 19.0.11.0.0
  fusion_plating_logistics     → 19.0.2.0.0 (+depends configurator)
  fusion_plating_reports       → 19.0.5.1.0

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

fusion_plating/fusion_plating_configurator/wizard/fp_direct_order_line.py

@@ -141,6 +141,25 @@ class FpDirectOrderLine(models.TransientModel):
         compute='_compute_is_missing_info',
     )
 
+    # ---- Sub 5 — Serial / Job# / Thickness -------------------------------
+    # These mirror the SO-line fields and are carried over when the wizard
+    # creates the sale order. Serial stays optional; Job# is left blank
+    # here and gets auto-assigned by action_confirm on the SO.
+    serial_id = fields.Many2one(
+        'fp.serial',
+        string='Serial Number',
+        ondelete='set null',
+        help='Optional. Typing a value offers to create a new serial on '
+             'the fly, or hit "Generate Serial" to auto-sequence.',
+    )
+    job_number = fields.Char(string='Job #')
+    thickness_id = fields.Many2one(
+        'fp.coating.thickness',
+        string='Thickness',
+        domain="[('coating_config_id', '=', coating_config_id)]",
+        ondelete='set null',
+    )
+
     # ---- Computes ----
     @api.depends('quantity', 'unit_price')
     def _compute_line_subtotal(self):
@@ -157,6 +176,22 @@ class FpDirectOrderLine(models.TransientModel):
                 and rec.quantity
             )
 
+    @api.onchange('coating_config_id')
+    def _onchange_coating_clears_thickness(self):
+        for rec in self:
+            if (rec.thickness_id
+                    and rec.thickness_id.coating_config_id != rec.coating_config_id):
+                rec.thickness_id = False
+
+    def action_generate_serial(self):
+        """Create an auto-sequenced fp.serial and assign it to this line."""
+        self.ensure_one()
+        if self.serial_id:
+            return False
+        seq = self.env['ir.sequence'].next_by_code('fp.serial') or 'FP-SN-0000'
+        self.serial_id = self.env['fp.serial'].create({'name': seq}).id
+        return False
+
     # ---- Onchange ----
     @api.onchange('quote_id')
     def _onchange_quote_id(self):

fusion_plating/fusion_plating_configurator/wizard/fp_direct_order_wizard.py

@@ -279,6 +279,11 @@ class FpDirectOrderWizard(models.TransientModel):
                 'x_fc_start_at_node_id': line.start_at_node_id.id or False,
                 'x_fc_is_one_off': line.is_one_off,
                 'x_fc_quote_id': line.quote_id.id or False,
+                # Sub 5 — carry serial / job# / thickness onto the SO line.
+                # Revision snapshot auto-fills on SO-line create from the part.
+                'x_fc_serial_id': line.serial_id.id or False,
+                'x_fc_job_number': line.job_number or False,
+                'x_fc_thickness_id': line.thickness_id.id or False,
             }))
 
         # 5. Create — stays in draft / quotation. Sub 1: user reviews

fusion_plating/fusion_plating_configurator/wizard/fp_direct_order_wizard_views.xml

@@ -106,6 +106,14 @@
                                     <field name="internal_description"
                                            optional="hide"/>
                                     <field name="coating_config_id"/>
+                                    <field name="thickness_id"
+                                           options="{'no_create': True}"
+                                           invisible="not coating_config_id"
+                                           optional="show"/>
+                                    <field name="serial_id"
+                                           options="{'no_create_edit': False}"
+                                           optional="show"/>
+                                    <field name="job_number" optional="hide"/>
                                     <field name="treatment_ids"
                                            widget="many2many_tags"
                                            optional="hide"/>