- Updated the save manager to enforce a new format version (2) and improved validation checks for the save data structure.
- Enhanced the `validate_data` function to ensure all required fields are present and valid.
- Adjusted the handling of legacy saves and introduced new checks for various state fields.
- Improved number formatting in the global script for better readability of large numbers.
- Updated tests to reflect changes in the save manager and validation logic, ensuring compatibility with the new state structure.
- Added new tests for group indexing and production transactions to ensure correctness of entity management and resource production.
- Added `blastability` property to entities for vulnerability tracking.
- Enhanced planet string parsing with validation and error handling.
- Introduced `simulation_rules.md` to document evolution mechanics and rules.
- Created tests for time progression and stellar evolution rules, ensuring correct handling of fractional years and resource production.
- Implemented `simulation_time.gd` for managing accumulated time and year processing.
- Updated tests to validate legacy save compatibility and migration to new time schema.
Kirill