feat(configurator): add header fields + line O2M to direct order wizard

Task A2 of the direct-order-wizard rewrite. Adds SO-header fields for
customer job #, three deadlines (planned start / internal / customer),
bill-to / ship-to address pickers, the line_ids O2M linking to
fp.direct.order.line, computed order totals, and a missing-info
warning banner. Partner onchange now also seeds default addresses.

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

fusion_plating/fusion_plating_configurator/wizard/fp_direct_order_wizard.py

@@ -94,6 +94,44 @@ class FpDirectOrderWizard(models.TransientModel):
 
     notes = fields.Text(string='Internal Notes')
 
+    # ---- Header additions (Phase A) ----
+    partner_invoice_id = fields.Many2one(
+        'res.partner', string='Invoice Address',
+        domain="['|', ('id', '=', partner_id), "
+               "('parent_id', '=', partner_id)]",
+    )
+    partner_shipping_id = fields.Many2one(
+        'res.partner', string='Delivery Address',
+        domain="['|', ('id', '=', partner_id), "
+               "('parent_id', '=', partner_id)]",
+    )
+    customer_job_number = fields.Char(
+        string='Customer Job #',
+        help="Customer's internal job number for cross-referencing. "
+             "Appears on work orders and invoices.",
+    )
+    planned_start_date = fields.Date(
+        string='Planned Start', default=fields.Date.context_today,
+    )
+    internal_deadline = fields.Date(string='Internal Deadline')
+    customer_deadline = fields.Date(string='Customer Deadline')
+
+    # ---- Lines (Phase A) ----
+    line_ids = fields.One2many(
+        'fp.direct.order.line', 'wizard_id', string='Order Lines',
+    )
+    total_amount = fields.Monetary(
+        string='Order Total',
+        compute='_compute_totals', currency_field='currency_id',
+    )
+    total_qty = fields.Integer(string='Total Qty', compute='_compute_totals')
+    total_line_count = fields.Integer(
+        string='Line Count', compute='_compute_totals',
+    )
+
+    # ---- Missing info banner ----
+    missing_info_msg = fields.Char(compute='_compute_missing_info_msg')
+
     # Description template picker — the domain is dynamically narrowed to
     # this part's canned descriptions first. When no part is chosen it
     # falls through to generic templates.
@@ -120,13 +158,46 @@ class FpDirectOrderWizard(models.TransientModel):
         for rec in self:
             rec.line_subtotal = (rec.quantity or 0) * (rec.unit_price or 0.0)
 
+    @api.depends('line_ids.line_subtotal', 'line_ids.quantity')
+    def _compute_totals(self):
+        for rec in self:
+            rec.total_amount = sum(rec.line_ids.mapped('line_subtotal'))
+            rec.total_qty = sum(rec.line_ids.mapped('quantity'))
+            rec.total_line_count = len(rec.line_ids)
+
+    @api.depends('line_ids.part_catalog_id', 'line_ids.coating_config_id',
+                 'line_ids.unit_price', 'line_ids.quantity')
+    def _compute_missing_info_msg(self):
+        for rec in self:
+            has_missing = False
+            for line in rec.line_ids:
+                if (not line.part_catalog_id
+                        or not line.coating_config_id
+                        or not line.unit_price
+                        or not line.quantity):
+                    has_missing = True
+                    break
+            rec.missing_info_msg = (
+                'Some lines are missing quote information '
+                '(part / treatment / price / qty). '
+                'Verify before confirming the order.'
+                if has_missing else False
+            )
+
     @api.onchange('partner_id')
     def _onchange_partner_id(self):
-        """Reset part selection when customer changes + pull invoice defaults."""
+        """Reset part selection when customer changes + pull invoice defaults + addresses."""
         self.part_catalog_id = False
         if self.partner_id and 'x_fc_default_invoice_strategy' in self.partner_id._fields:
             self.invoice_strategy = self.partner_id.x_fc_default_invoice_strategy or False
             self.deposit_percent = self.partner_id.x_fc_default_deposit_percent or 0.0
+        if self.partner_id:
+            addrs = self.partner_id.address_get(['invoice', 'delivery'])
+            self.partner_invoice_id = addrs.get('invoice') or self.partner_id.id
+            self.partner_shipping_id = addrs.get('delivery') or self.partner_id.id
+        else:
+            self.partner_invoice_id = False
+            self.partner_shipping_id = False
 
     @api.onchange('description_template_id')
     def _onchange_description_template(self):