Note

Switch total voting power computation to return errors instead of panicking, add a safe accessor, and update callers/tests accordingly.

• Types (types/validator_set.go):
  • Change updateTotalVotingPower() to return error instead of panicking on overflow and set totalVotingPower.
  • Add TotalVotingPowerSafe() to get TVP with error handling.
  • Update TotalVotingPower() to panic only if updateTotalVotingPower() returns an error.
  • Use error-based TVP validation in updateWithChangeSet(), ValidatorSetFromProto() (now returns error on bad input), and ValidatorSetFromExistingValidators().
• Tests (types/validator_set_test.go):
  • Add TestValidatorSetFromProtoReturnsErrorOnOverflow to assert error on TVP overflow from proto input.
  • Update verifyValidatorSet() to handle updateTotalVotingPower() error.
  • Minor import addition for crypto key encoding.

^{Written by Cursor Bugbot for commit a66f19f. This will update automatically on new commits. Configure here.}