Handle zero/negative values in logarithmic scale

[kuzmadom]

Currently, charts with a logarithmic axis break silently or render incorrectly when the data contains zero or negative values. Since a logarithmic scale is mathematically undefined for these values, the current behavior is misleading and can lead to wrong data interpretation.

The library should proactively handle such invalid data. The ideal solution would be to throw a clear validation error during chart initialization, explicitly stating that zero/negative values are incompatible with a log scale.