Adds "ON HOLD" status to order models (#7807)

* Add "ON_HOLD" status code for orders

* Add placeholder buttons for purchase order status change

* Adds hooks for introspecting status code enumerations

* Refactor status codes for import session

- Remove hard-coded values

* Refactor into <PrimaryActionButton />

* Cleanup

* more permission checks

* Add placeholder actions for SalesOrder

* Placeholder actions for ReturnOrder

* Placeholder actions for build order

* Actions for "return order"

* Update actions for return order

- Add "on hold" transition

* Implement transitions for SalesOrder

* Allow control over SalesOrderLineItemTable

* Implement PurchaseOrder actions

* Improve API query lookup efficiency

* UI cleanup

* CUI cleanup

* Build Order Updates

- Implement StateTransitionMixin for BuildOrder model
- Add BuildIssue API endpoint
- Add BuildHold API endpoint
- API query improvements
- PUI actions

* Increase timeout

* Bump API version

* Fix API version

* Fix sales order actions

* Update src/backend/InvenTree/order/serializers.py

Co-authored-by: Matthias Mair <code@mjmair.com>

* Adjust build filters

* PUI updates

* CUI refactoring for purchase orders

* Refactor CUI sales order page

* Refactor for return order

* Refactor CUI build page

* Playwright tests for build order

* Add playwright test for sales orders

* Add playwright test for purchase orders

* js linting

* Refactor return order page

* Add missing functions from previous commit

* Fix for "on order" badge on PartDetail page

* UI tweaks

* Fix unit tests

* Update version check script

* Fix typo

* Enforce integer conversion for BaseEnum class

* Unit test updates

- Includes improvement for equality comparison for enums

* Update documentation

---------

Co-authored-by: Matthias Mair <code@mjmair.com>

docs/docs/order/purchase_order.md

@@ -20,6 +20,7 @@ Each Purchase Order has a specific status code which indicates the current state
 | --- | --- |
 | Pending | The purchase order has been created, but has not been submitted to the supplier |
 | In Progress | The purchase order has been issued to the supplier, and is in progress |
+| On Hold | The purchase order has been placed on hold, but is still active |
 | Complete | The purchase order has been completed, and is now closed |
 | Cancelled | The purchase order was cancelled, and is now closed |
 | Lost | The purchase order was lost, and is now closed |

docs/docs/order/return_order.md

@@ -45,6 +45,7 @@ Each Return Order has a specific status code, as follows:
 | --- | --- |
 | Pending | The return order has been created, but not sent to the customer |
 | In Progress | The return order has been issued to the customer |
+| On Hold | The return order has been placed on hold, but is still active |
 | Complete | The return order was marked as complete, and is now closed |
 | Cancelled | The return order was cancelled, and is now closed |
 

docs/docs/order/sales_order.md

@@ -20,6 +20,7 @@ Each Sales Order has a specific status code, which represents the state of the o
 | --- | --- |
 | Pending | The sales order has been created, but has not been finalized or submitted |
 | In Progress | The sales order has been issued, and is in progress |
+| On Hold | The sales order has been placed on hold, but is still active |
 | Shipped | The sales order has been shipped, but is not yet complete |
 | Complete | The sales order is fully completed, and is now closed |
 | Cancelled | The sales order was cancelled, and is now closed |