Bug: Single domain warp should not use fractal bounding #172

When fractal type is None (single domain warp), every port still uses amp = domain_warp_amp * fractal_bounding. That’s wrong: fractal bounding is for normalizing multi-octave sums; with a single warp there are no octaves, so amplitude should be domain_warp_amp only.

Fix: In the single domain warp path only, use domain_warp_amp and do not multiply by fractal bounding. Keep domain_warp_amp * fractal_bounding for Progressive/Independent domain warp.

Reference: Zig PR #163 does this for the Zig port; the same change should be applied in all other ports (C, C++, C#, Java, JS, Rust, Go, GLSL, HLSL, Pascal, Odin, Haxe, PowerShell, GML, Fortran).