Fix: Ensure outcomeSlotCount > 1 in splitPosition and mergePositions

[rishabhjamwal]

Summary

This PR improves the validation of outcomeSlotCount in splitPosition and mergePositions. Previously, the require statement only checked outcomeSlotCount > 0, which allowed unintended behavior when outcomeSlotCount == 1.

Changes

• Updated the require statements in splitPosition and mergePositions to ensure outcomeSlotCount > 1.

Impact

• This is not a critical vulnerability but a code clarity improvement.
• Normalizing outcomeSlotCount ensures that functions behave as intended and avoids confusion in logic interpretation.

Testing

• Verified that conditions with only one outcome cannot be split or merged.