[Feature] Part lock (#7527)

* Add "locked" field to Part model

- Default = false

* Add "locked" field to PartSerializer

- Allow filtering in API

* Filter CUI tables by "locked" status

* Add "locked" filter to part table

* Update PUI table

* PUI: Update display of part details  page

* Add "locked" element

* Ensmallen the gap

* Edit "locked" field in CUI

* Check BomItem before editing or deleting

* Prevent bulk delete of BOM items

* Check part lock for PartParameter model

* Prevent deletion of a locked part

* Add option to prevent build order creation for unlocked part

* Bump API version

* Hide actions from BOM table if part is locked

* Fix for boolean form field

* Update <PartParameterTable>

* Add unit test for 'BUILDORDER_REQUIRE_LOCKED_PART' setting

* Add unit test for part deletion

* add bom item test

* unit test for part parameter

* Update playwright tests

* Update docs

* Remove defunct setting

* Update playwright tests

docs/docs/build/build.md

@@ -246,3 +246,19 @@ Build orders may (optionally) have a target complete date specified. If this dat
 
 - Builds can be filtered by overdue status in the build list
 - Overdue builds will be displayed on the home page
+
+## Build Order Restrictions
+
+There are a number of optional restrictions which can be applied to build orders, which may be enabled or disabled in the system settings:
+
+### Require Active Part
+
+If this option is enabled, build orders can only be created for parts which are marked as [Active](../part/part.md#active-parts).
+
+### Require Locked Part
+
+If this option is enabled, build orders can only be created for parts which are marked as [Locked](../part/part.md#locked-parts).
+
+### Require Valid BOM
+
+If this option is enabled, build orders can only be created for parts which have a valid [Bill of Materials](./bom.md) defined.