Enable address API to support email, vat_id, and reverse_charge_status

Update the API components to include email, vat_id, and reverse_charge_status in the address attributes.
Modified `Spree::ApiConfiguration` and `Spree::PermittedAttributes` to handle the new fields.
These changes improve data completeness and tax handling by storing additional information in the address.

Author: JustShah

api/lib/spree/api_configuration.rb

@@ -85,7 +85,7 @@ class ApiConfiguration < Preferences::Configuration
     preference :address_attributes, :array, default: [
       :id, :name, :address1, :address2, :city, :zipcode, :phone, :company,
       :alternative_phone, :country_id, :country_iso, :state_id, :state_name,
-      :state_text
+      :state_text, :email, :vat_id, :reverse_charge_status
     ]
 
     preference :country_attributes, :array, default: [:id, :iso_name, :iso, :iso3, :name, :numcode]

api/spec/requests/spree/api/address_books_spec.rb

@@ -90,6 +90,31 @@ module Spree::Api
           end
         end
 
+        context "when updating a default address with email, VAT-ID and reverse charge status" do
+          let(:user) { create(:user, spree_api_key: 'galleon') }
+          let(:changes) {
+            { name: "Hermione Granger", email: "[email protected]", vat_id: "AB1234567",
+                            reverse_charge_status: "enabled", id: user.ship_address.id}
+          }
+          before do
+            # Create "Harry Potter" default shipping address
+            user.save_in_address_book(harry_address_attributes, true)
+          end
+
+          it "changes the address and marks the changed address as default" do
+            expect {
+              put "/api/users/#{user.id}/address_book",
+                params:  { address_book: harry_address_attributes.merge(changes) },
+                headers: { Authorization: 'Bearer galleon' }
+            }.to change { user.reload.ship_address.name }.from("Harry Potter").to("Hermione Granger")
+
+            expect(json_response.first["reverse_charge_status"]).to eq("enabled")
+            expect(json_response.first["email"]).to eq("[email protected]")
+            expect(json_response.first["vat_id"]).to eq("AB1234567")
+            expect(response.status).to eq(200)
+          end
+        end
+
         context 'when creating an address' do
           it 'marks the update_target' do
             user = create(:user, spree_api_key: 'galleon')

api/spec/requests/spree/api/checkouts_spec.rb

@@ -77,7 +77,10 @@ module Spree::Api
             phone:      '3014445002',
             zipcode:    '20814',
             state_id:   @state.id,
-            country_id: @country.id
+            country_id: @country.id,
+            email: '[email protected]',
+            vat_id: 'ab1235',
+            reverse_charge_status: 'disabled'
           }
         end
 
@@ -95,7 +98,14 @@ module Spree::Api
             } }
           expect(json_response['state']).to eq('delivery')
           expect(json_response['bill_address']['name']).to eq('John Doe')
+          expect(json_response['bill_address']['email']).to eq('[email protected]')
+          expect(json_response['bill_address']['vat_id']).to eq('ab1235')
+          expect(json_response['bill_address']['reverse_charge_status']).to eq('disabled')
           expect(json_response['ship_address']['name']).to eq('John Doe')
+          expect(json_response['ship_address']['email']).to eq('[email protected]')
+          expect(json_response['ship_address']['vat_id']).to eq('ab1235')
+          expect(json_response['ship_address']['reverse_charge_status']).to eq('disabled')
+
           expect(response.status).to eq(200)
         end
 

core/lib/spree/permitted_attributes.rb

@@ -42,6 +42,7 @@ module PermittedAttributes
     @@address_attributes = [
       :id, :name, :address1, :address2, :city, :country_id, :state_id,
       :zipcode, :phone, :state_name, :country_iso, :alternative_phone, :company,
+      :email, :vat_id, :reverse_charge_status,
       country: [:iso, :name, :iso3, :iso_name],
       state: [:name, :abbr]
     ]