feat(configurator): Phase C polish — to-node picker, WO description, one-off flag

C1: start_at_node_id per wizard line, mirrors to x_fc_start_at_node_id
on sale.order.line. Domain filters to nodes descending from the
coating_config's recipe so the estimator only picks valid resume
points. bridge_mrp will use this in a follow-up to skip ancestor
steps in the generated work order.

C2: part_wo_description (separate from customer-facing line_description)
lets the planner add internal-only notes that appear on the travelling
sheet only. Mirrors to x_fc_part_wo_description on sale.order.line.

C5: is_one_off flag for prototype / non-catalog parts. Mirrors to
x_fc_is_one_off. Actual skip-catalog behaviour will be wired in a
later pass.

All three fields appear in the wizard line drill-in form (under a new
"Work Order (internal)" group) and as togglable columns on the
sale.order.line tree.

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

fusion_plating/fusion_plating_configurator/models/sale_order_line.py

@@ -25,3 +25,19 @@ class SaleOrderLine(models.Model):
         help='Lines sharing a tag (e.g. "WO#1") will be batched into one '
              'manufacturing order when bridge_mrp generates MOs.',
     )
+    x_fc_part_wo_description = fields.Text(
+        string='On Work Order',
+        help='Extra detail printed on the work order travelling sheet. '
+             'Separate from the customer-facing line description.',
+    )
+    x_fc_start_at_node_id = fields.Many2one(
+        'fusion.plating.process.node',
+        string='Start at Node',
+        help='For re-work jobs: pick the recipe step where this job '
+             'should begin. bridge_mrp skips ancestor steps.',
+    )
+    x_fc_is_one_off = fields.Boolean(
+        string='One-off Part',
+        help='Flag for prototype / non-catalog parts that should not be '
+             'reused after this order.',
+    )

fusion_plating/fusion_plating_configurator/views/sale_order_views.xml

@@ -101,6 +101,8 @@
                 <field name="x_fc_treatment_ids" widget="many2many_tags" optional="hide"/>
                 <field name="x_fc_part_deadline" optional="hide"/>
                 <field name="x_fc_wo_group_tag" optional="hide"/>
+                <field name="x_fc_start_at_node_id" optional="hide"/>
+                <field name="x_fc_is_one_off" optional="hide"/>
                 <field name="x_fc_rush_order" optional="hide"/>
             </xpath>
         </field>

fusion_plating/fusion_plating_configurator/wizard/fp_direct_order_line.py

@@ -85,6 +85,25 @@ class FpDirectOrderLine(models.TransientModel):
              'will be batched into one manufacturing order.',
     )
 
+    # ---- Phase C: polish ----
+    part_wo_description = fields.Text(
+        string='On Work Order',
+        help='Extra detail printed on the work order travelling sheet. '
+             'Kept separate from the customer-facing description.',
+    )
+    start_at_node_id = fields.Many2one(
+        'fusion.plating.process.node',
+        string='Start at Node',
+        domain="[('parent_id', 'child_of', coating_config_id and coating_config_id.recipe_id.id)]",
+        help='For re-work jobs: pick the recipe step where this job should '
+             'begin. Skips ancestor steps in the generated work order.',
+    )
+    is_one_off = fields.Boolean(
+        string='One-off Part',
+        help='Do not save this as a reusable part in the catalog after the '
+             'order is created. Useful for quote-only or prototype parts.',
+    )
+
     # ---- Description ----
     description_template_id = fields.Many2one(
         'fp.sale.description.template',

fusion_plating/fusion_plating_configurator/wizard/fp_direct_order_wizard.py

@@ -243,6 +243,9 @@ class FpDirectOrderWizard(models.TransientModel):
                 'x_fc_part_deadline': line.part_deadline,
                 'x_fc_rush_order': line.rush_order,
                 'x_fc_wo_group_tag': line.wo_group_tag or False,
+                'x_fc_part_wo_description': line.part_wo_description or False,
+                'x_fc_start_at_node_id': line.start_at_node_id.id or False,
+                'x_fc_is_one_off': line.is_one_off,
             }))
 
         # 5. Create + confirm

fusion_plating/fusion_plating_configurator/wizard/fp_direct_order_wizard_views.xml

@@ -149,6 +149,14 @@
                                                nolabel="1" colspan="2"
                                                placeholder="Pick a template above, then tweak the text here."/>
                                     </group>
+                                    <group string="Work Order (internal)">
+                                        <field name="part_wo_description"
+                                               nolabel="1" colspan="2"
+                                               placeholder="Extra detail for the travelling sheet. Not shown to the customer."/>
+                                        <field name="start_at_node_id"
+                                               options="{'no_create': True}"/>
+                                        <field name="is_one_off"/>
+                                    </group>
                                 </form>
                             </field>
                             <group class="mt-3">