* feat: implement findNextPeriod function and integrate into year-end closing logic
* feat: add integrity check for PDF documents and enhance user feedback for corrupt files
* Refactor year-end service and period creation logic for improved UTC handling and error messaging
- Update `validateYearEndReadiness` to assert on stable warning messages without interpolating period names.
- Modify `createNextPeriod` to ensure date calculations are performed in UTC, preventing DST-related issues.
- Enhance error handling in `validateYearEndReadiness` and `executeYearEndClosing` to avoid exposing database details.
- Introduce structured error messages for year-end processes in `structured-errors.ts`.
- Add tests for document integrity checks, ensuring proper authentication and error handling.
- Implement GUC checks in document versioning to prevent unauthorized modifications and ensure company membership.
- Update migration scripts to reflect changes in document immutability enforcement.
* fix: add comment to clarify GUC behavior in document supersession logic
Mattsson
8979f6eda3