Use floatval instead of intval for history values

[Sekiro-kost]

Replaced intval with floatval when rounding historical average, min, and max values to ensure decimal precision is preserved. This change affects the calculation and display of historical statistics in the cmd class.

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• Bug fix (non-breaking change which fixes)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
  • This change is only breaking for integrators, not for external standards or end-users.
• Documentation improvement

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