Roadmap

Define internal record model and synthetic JSON/CSV fixtures.
Implement strict same-format Bitwarden import and validation.
Implement loss-aware field preservation and URL normalization.
Implement exact/likely/possible duplicate classification and newest-record preference.
Implement same-format merged export with CSV loss warnings.
Build PySide6 desktop workflow and read-only review screens.
Add comprehensive plain-text and in-app audit logging.
Add packaging documentation and desktop smoke tests.

Real Bitwarden exports are not required for development or tests.