Support parameter transformations in SCE calibration

[CyrilThebault]

Summary

This PR adds support for parameter transformations during SCE calibration.

Parameters are transformed into optimiser search space before calibration, while FUSE continues to evaluate parameters in physical space.

Supported transformations are:

• none
• log10
• natural logarithm

Implementation

• adds reusable parameter transformation utilities
• validates transformation codes and parameter bounds
• transforms initial values and bounds before calling SCE
• stores transformation codes in the SCE callback context
• converts SCE parameters back to physical space before FUSE_evaluate

Testing

Tested with:

• no transformation
• log10 transformation
• natural logarithm transformation
• invalid transformation code

Verified that:

• each transformation is applied to the intended parameter
• SCE receives transformed values
• FUSE_evaluate receives physical values after inverse transformation
• invalid transformations are rejected