Create Horse Power - CE 1.2.5

Balance configuration

• Added path.enableStressScaling to control path-based stress-capacity scaling independently from path RPM scaling.
• The option defaults to true, preserving existing behavior for current worlds and modpacks.
• When disabled, path quality still controls RPM, validity, coverage, and path-efficiency behavior, but the path stress multiplier is fixed at 1.0 so a worker configured for 32 SU remains at 32 SU on Poor, Normal, or Great paths.
• balance.enableIndividualAnimalStats continues to control only animal movement-speed/max-health bonuses; path stress scaling is now explicitly configurable instead of being coupled to path quality.

Verification

• Added regression coverage proving the default policy preserves the existing 0.90x/1.00x/1.10x path stress multipliers.
• Added regression coverage proving the disabled policy neutralizes Poor/Normal/Great path stress multipliers to 1.00x.