* 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
* Add database model for defining custom units
- Database model
- DRF serializer
- API endpoints
* Add validation hook
* Custom check for the 'definition' field
* Add settings page for custom units
- Table of units
- Create / edit / delete buttons
* Allow "unit" field to be empty
- Not actually required for custom unit definition
* Load custom unit definitions into global registry
* Docs: add core concepts page(s)
* Add some back links
* Update docs
* Add unit test for custom unit conversion
* More unit testing
* remove print statements
* Add missing table rule
* Add validation to part units field
* Add "pack_units" field to the SupplierPart model
* Migrate old units to new units, and remove old field
* Table fix
* Fixture fix
* Update migration
* Improve "hook" for loading custom unit database
* Display part units column in part table
- Also allow ordering by part units
- Allow filtering to show parts which have defined units
* Adds data migration for converting units to valid values
* Add "pack_units_native" field to company.SupplierPart model
* Clean pack units when saving a SupplierPart
- Convert to native part units
- Handle empty units value
- Add unit tests
* Add background function to rebuild supplier parts when a part is saved
- Required to ensure that the "pack_size_native" is up to date
* Template updates
* Sort by native units first
* Bump API version
* Rename "pack_units" to "pack_quantity"
* Update migration file
- Allow reverse migration
* Fix for currency migration
- Handle case where no currencies are provided
- Handle case where base currency is not in provided options
* Adds unit test for data migration
* Add unit test for part.units data migration
- Check that units fields are updated correctly
* Add some extra "default units"
- each / piece
- dozen / hundred / thousand
- Add unit testing also
* Update references to "pack_size"
- Replace with "pack_quantity" or "pack_quantity_native" as appropriate
* Improvements based on unit testing
* catch error
* Docs updates
* Fixes for pricing tests
* Update unit tests for part migrations · 1b6b6d9d
* Bug fix for conversion code
* javascript updates
* JS formatting fix