* fix(items): add explicit sentinel value for clearing supplier in bulk edit
This fixes a regression introduced in the fix for [REDACTED]
Introduce `Item::CLEAR_SUPPLIER_OPTION = 'NONE'` to distinguish between
\"leave supplier_id unchanged\" (empty string) and \"clear supplier_id\"
(sentinel). Previously, empty string was ambiguous.
- Add `CLEAR_SUPPLIER_OPTION` constant with doc comment explaining intent
- Update supplier dropdown to include sentinel as first real option
- Shift empty string to mean \"do nothing\" across all bulk edit fields
* test(items): add regression tests for mass assignment in bulk edit
Cover [REDACTED]: Item::update_multiple() bypasses model
$allowedFields via Query Builder, allowing unintended field writes
during bulk edit operations.
* fix(items): add type validation to bulk-edit field filter
filterBulkEditFields now validates field values before accepting them:
- Non-scalar values are rejected (array injection guard)
- Price/quantity fields are locale-parsed to floats, invalid strings skipped
- Boolean fields must be 0 or 1, other values skipped
- supplier_id must be numeric; CLEAR_SUPPLIER_OPTION still nulls it
Update tests to assert parsed types (float for prices, int for
supplier_id) and replace the fill-all-fields fixture with a realistic
input that only covers fields a form would actually submit.
* test(items): add supplier cleanup and helper methods to bulk update tests
- Track created supplier person IDs for teardown cleanup
- Delete supplier records in tearDown to prevent test pollution
- Extract item/supplier creation into reusable helper methods
* style(tests): rename variables to camelCase in ItemBulkUpdateTest
* refactor(items): rename snake_case variables to camelCase
Convert Item model, Items controller, and bulk update tests to
PSR-compliant camelCase naming per project conventions.
- Rename update_multiple to updateMultiple in Item model
- Rename local variables (item_data, items_to_update, tax_names, etc.)
to camelCase across Items controller and Item model
- Update ItemBulkUpdateTest to use new updateMultiple method name
- Reorder and update AGENTS.md naming conventions
* style(tests): convert snake_case variables to camelCase in ItemBulkUpdateTest
Rename local variables and property names to camelCase for PSR-12
consistency, matching convention used elsewhere in new test code.
