feat(certificates): per-customer document preferences (CHUNK 1/4)

Customers can now pick which shipping-time documents they actually want
instead of the shop remembering it per account. Four booleans on
res.partner (only shown on companies, not contacts):

  x_fc_send_coc              (default True)  Certificate of Conformance
  x_fc_send_thickness_report (default True)  Thickness readings
  x_fc_send_packing_slip     (default True)  Packing slip PDF
  x_fc_send_bol              (default False) Bill of Lading

Surfaced in a "Plating Documents" page on the customer form.

Two downstream gates:

1. fp.notification.template._collect_attachments() now reads the flags
   when attaching CoC / thickness / packing / BoL PDFs to the shipping
   confirmation email. Flags missing on the partner (e.g. legacy
   customers) fall back to the original defaults so nothing regresses.

2. mrp.production.button_mark_done() only auto-creates the quality
   documents the customer wants. A customer that unchecks both CoC and
   thickness gets zero certs auto-generated — shop can still create
   them manually if needed.

Note: today a standalone thickness-only report template doesn't exist,
so when a customer asks for thickness only (CoC off, thickness on) the
dispatcher still attaches the CoC PDF (which carries thickness data)
but with CoC creation gated off. A dedicated thickness-only template
is a follow-up.

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

fusion_plating/fusion_plating_certificates/__manifest__.py

@@ -35,6 +35,7 @@ Includes Fischerscope thickness measurement data capture.
         'data/fp_certificate_sequence_data.xml',
         'views/res_config_settings_views.xml',
         'views/fp_certificate_views.xml',
+        'views/res_partner_views.xml',
         'views/fp_certificates_menu.xml',
     ],
     'installable': True,

fusion_plating/fusion_plating_certificates/models/__init__.py

@@ -6,3 +6,4 @@
 from . import fp_thickness_reading
 from . import fp_certificate
 from . import res_config_settings
+from . import res_partner

fusion_plating/fusion_plating_certificates/models/res_partner.py

@@ -0,0 +1,41 @@
+# -*- coding: utf-8 -*-
+# Copyright 2026 Nexa Systems Inc.
+# License OPL-1 (Odoo Proprietary License v1.0)
+# Part of the Fusion Plating product family.
+
+from odoo import fields, models
+
+
+class ResPartner(models.Model):
+    """Per-customer preferences for what quality documents are generated
+    and emailed when a job ships.
+
+    Some aerospace customers insist on a full CoC + thickness report;
+    others just want the CoC; some repeat commercial accounts want
+    neither (the PO says "no paperwork required"). Rather than hard-code
+    the shop's policy, each customer controls their own.
+    """
+    _inherit = 'res.partner'
+
+    x_fc_send_coc = fields.Boolean(
+        string='Send Certificate of Conformance',
+        default=True, tracking=True,
+        help='When shipping, auto-generate and email a CoC to this customer.',
+    )
+    x_fc_send_thickness_report = fields.Boolean(
+        string='Send Thickness Report',
+        default=True, tracking=True,
+        help='When shipping, auto-generate and email a thickness report '
+             'with the Fischerscope readings for this job.',
+    )
+    x_fc_send_packing_slip = fields.Boolean(
+        string='Send Packing Slip',
+        default=True, tracking=True,
+        help='Attach the packing slip PDF to the shipping confirmation email.',
+    )
+    x_fc_send_bol = fields.Boolean(
+        string='Send Bill of Lading',
+        default=False, tracking=True,
+        help='Attach the BoL PDF to the shipping confirmation email. '
+             'Usually only for customers that invoice freight separately.',
+    )

fusion_plating/fusion_plating_certificates/views/res_partner_views.xml

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright 2026 Nexa Systems Inc.
+    License OPL-1 (Odoo Proprietary License v1.0)
+    Part of the Fusion Plating product family.
+-->
+<odoo>
+
+    <record id="view_partner_form_fp_document_prefs" model="ir.ui.view">
+        <field name="name">res.partner.form.fp.document.prefs</field>
+        <field name="model">res.partner</field>
+        <field name="inherit_id" ref="base.view_partner_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//notebook" position="inside">
+                <page string="Plating Documents"
+                      name="fp_document_prefs"
+                      invisible="is_company != True">
+                    <group string="Documents to Send on Shipment"
+                           name="fp_document_prefs_group">
+                        <p class="text-muted" colspan="2">
+                            Control which quality documents are auto-generated and
+                            emailed to this customer when a job ships. Matches the
+                            customer's PO requirements so the shop doesn't have to
+                            remember per-account preferences.
+                        </p>
+                        <group>
+                            <field name="x_fc_send_coc" widget="boolean_toggle"/>
+                            <field name="x_fc_send_thickness_report" widget="boolean_toggle"/>
+                        </group>
+                        <group>
+                            <field name="x_fc_send_packing_slip" widget="boolean_toggle"/>
+                            <field name="x_fc_send_bol" widget="boolean_toggle"/>
+                        </group>
+                    </group>
+                </page>
+            </xpath>
+        </field>
+    </record>
+
+</odoo>