feat(plating): company-level UoM defaults — F/C, mils/microns, etc.

Different facilities use different measurement systems. North-American
aerospace shops live in °F + mils + gallons + lb; ROW + most metric
shops use °C + microns + litres + kg. Add company-level defaults so
each shop picks its units once; new records inherit them automatically.

**Settings on res.company** (7 Selection fields):
  • x_fc_default_temp_uom            — °F / °C
  • x_fc_default_thickness_uom       — mils / microns / inches / mm
  • x_fc_default_volume_uom          — US gal / litres / Imp gal
  • x_fc_default_mass_uom            — lb / kg / oz / g
  • x_fc_default_pressure_uom        — psi / bar / kPa
  • x_fc_default_current_density_uom — A/ft² (ASF) / A/dm² (ASD)
  • x_fc_default_area_uom            — sq in / sq ft / cm² / m²

All default to North-American aerospace conventions (F, mils, gal, lb,
psi, asf, sq_in) — admins flip them once during onboarding via
Settings → Fusion Plating → Units of Measure.

**Per-record use** (this round)
  • mrp.workorder.x_fc_bake_temp_uom (°F / °C) — defaults from company,
    operator can override per WO if a specific bake needs a different
    unit (rare but allowed).
  • Bake-finish gate error message now reports the actual unit:
    "Bake Temp (°F)" or "Bake Temp (°C)" instead of hard-coded F.
  • Form: Bake Temp + Temp Unit picker side-by-side in the bake group.

**Settings UI** — new "Units of Measure" block on Settings → Fusion
Plating page with help text per unit explaining where each is used.

**Verified end-to-end** (scripts/fp_uom_smoke.py):
  • All 7 defaults populate with NA-aerospace defaults
  • Switching company default to °C makes a NEW WO inherit °C
  • Existing WOs keep their stored °F (no surprise mutation)

**Roadmap (deferred to next round)** — wire the same default-from-company
inheritance to:
  • fp.bake.oven.target_temp (currently no UoM)
  • fp.bake.window.bake_temp (currently no UoM)
  • fp.coating.config.bake_temperature (currently no UoM)
  • fp.tank.volume already has volume_uom; default from company
  • fp.bath.log chemistry readings already use parameter.uom; align
    with company default for new params

The settings + framework are now in place — adding more per-record uom
fields is mechanical from here.

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

fusion_plating/fusion_plating_bridge_mrp/__manifest__.py

@@ -5,7 +5,7 @@
 
 {
     "name": "Fusion Plating — MRP Bridge",
-    'version': '19.0.6.7.0',
+    'version': '19.0.6.8.0',
     'category': 'Manufacturing/Plating',
     'summary': 'Bridge Fusion Plating facilities, baths and tanks to Odoo MRP work orders.',
     'description': """

fusion_plating/fusion_plating_bridge_mrp/models/mrp_workorder.py

@@ -71,8 +71,15 @@ class MrpWorkorder(models.Model):
              'which one for the chart-recorder trail.',
     )
     x_fc_bake_temp = fields.Float(
-        string='Bake Temp (°F)', digits=(5, 1),
-        help='Setpoint temperature recorded for this bake WO.',
+        string='Bake Temp', digits=(5, 1),
+        help='Setpoint temperature recorded for this bake WO. Unit '
+             'follows the company default (Settings → Fusion Plating → '
+             'Units of Measure) — overrideable per WO via Temp Unit.',
+    )
+    x_fc_bake_temp_uom = fields.Selection(
+        [('F', '°F'), ('C', '°C')],
+        string='Temp Unit',
+        default=lambda self: self.env.company.x_fc_default_temp_uom or 'F',
     )
     x_fc_bake_duration_hours = fields.Float(
         string='Bake Duration (h)', digits=(5, 2),
@@ -811,7 +818,8 @@ class MrpWorkorder(models.Model):
                 continue
             missing = []
             if not wo.x_fc_bake_temp:
-                missing.append(_('Bake Temp (°F)'))
+                unit = '°' + (wo.x_fc_bake_temp_uom or 'F')
+                missing.append(_('Bake Temp (%s)') % unit)
             if not wo.x_fc_bake_duration_hours:
                 missing.append(_('Bake Duration (h)'))
             if wo.x_fc_oven_id and not wo.x_fc_oven_id.chart_recorder_ref:

fusion_plating/fusion_plating_bridge_mrp/views/mrp_workorder_views.xml

@@ -199,7 +199,12 @@
                                    required="x_fc_requires_oven"/>
                         </group>
                         <group string="Bake Parameters (required at finish)">
-                            <field name="x_fc_bake_temp"/>
+                            <label for="x_fc_bake_temp"/>
+                            <div class="o_row">
+                                <field name="x_fc_bake_temp" nolabel="1"/>
+                                <field name="x_fc_bake_temp_uom" nolabel="1"
+                                       style="margin-left: 8px;"/>
+                            </div>
                             <field name="x_fc_bake_duration_hours"/>
                         </group>
                     </group>