- Add validateCSVStockLocations() method to check CSV columns against allowed locations
- Log error when invalid stock location columns are detected
- Tests for valid, invalid, and mixed stock location columns
- Tests for location name case sensitivity
- Tests for CSV parsing and detecting location columns
- Add error message language string for invalid locations
Co-authored-by: objecttothis <17935339+objecttothis@users.noreply.github.com>