feat: Add state reconstruction tests

[crStiv]

feat: Add state reconstruction tests

Closes #3177

This PR:

• Adds tests for state reconstruction in two scenarios:
  • Node starting with PoS version
  • Node upgrading from fee version to PoS version
• Detects and validates proper state reconstruction after node restarts
• Ensures version transitions are correctly maintained

Key places to review:

• tests/state_reconstruction.rs - New test module implementing both test cases
• tests/main.rs - Updated to include new state_reconstruction module

Things tested

• Compilation and linting of tests directory
• Both test cases compile without warnings using clippy