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/build/build.md

@@ -66,10 +66,11 @@ Each *Build Order* has an associated *Status* flag, which indicates the state of
 
 | Status | Description |
 | ----------- | ----------- |
-| `Pending` | Build has been created and build is ready for subpart allocation |
-| `Production` | One or more build outputs have been created for this build |
-| `Cancelled` | Build has been cancelled |
-| `Completed` | Build has been completed |
+| `Pending` | Build order has been created, but is not yet in production |
+| `Production` | Build order is currently in production |
+| `On Hold` | Build order has been placed on hold, but is still active |
+| `Cancelled` | Build order has been cancelled |
+| `Completed` | Build order has been completed |
 
 **Source Code**