5f5cc6f8948b88a03d8ea1e4cb553e1191ae4c12
- 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.
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