v0.4.0

What's Changed

• Solve Issue #8 by @GHubBytex in #10

• Preserved custom logistic request slot positions during export/import.
• Added backward-compatible import handling for older LRS1 codes from 0.2.0 and 0.3.0.
• Improved profile parsing so sparse or slot-indexed filter layouts are restored correctly.
• Updated the README to document preserved request layout behavior.

Full Changelog: v0.3.0...v0.4.0