- Add GPU config fields: GPUEnabled, GPUPool, GPUWallet, GPUAlgo, CUDA, OpenCL
- XMRig config now supports separate pool/algo for GPU vs CPU mining
- CPU can mine RandomX while GPU mines KawPow on different pools
- Add xmrig_gpu_test.go with tests for dual, GPU-only, and CPU-only configs
- Make getXMRigConfigPath a variable for test overriding
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>