fix(dashboard): resolve tutorial QA notes (clips 2–6)

- settings/company: show success toast on save (2.1)
- inspection templates: add explicit Save button (2.6)
- parts: label price fields with AED currency (3.1)
- service groups: add parts/services picker to packages (3.3)
- vehicles: add insurance (has_insurance + insurance type) field (4.2)
- appointments: add calendar view with list/calendar toggle (5.1)
- job card check-in: require department (5.4)
- job card payments: refresh job card/invoice queries so PAID shows (5.6)
- vendors: add phone + address fields (6.1)
- bill payments: surface real vendor/employee validation errors (6.4)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

apps/dashboard/modules/settings/company/settings-form.tsx

@@ -151,15 +151,12 @@ export function SettingsForm() {
     }, [data]) // eslint-disable-line react-hooks/exhaustive-deps
 
     const { mutate, error, isPending } = useFormMutation(form, {
-        mutationFn: (values: SettingsFormValues) => {
-            const payload = mapFormToPayload(values)
-            const promise = api.settings.update(payload)
-            toast.promise(promise, {
-                loading: "Saving settings...",
-                success: "Settings saved successfully",
-                error: "Failed to save settings",
-            })
-            return promise
+        mutationFn: (values: SettingsFormValues) => api.settings.update(mapFormToPayload(values)),
+        onSuccess: () => {
+            toast.success("Settings saved successfully")
+        },
+        onError: () => {
+            toast.error("Failed to save settings")
         },
     })