Initial commit: jackpotminer Equihash 192,7 miner

GPU-accelerated Equihash 192,7 miner in Rust with three solver backends:
- CPU: Wagner's algorithm, AVX2 packed slots (xenoncat-style)
- OpenCL: full on-GPU solve (kernels/equihash.cl); runs on NVIDIA and AMD
- CUDA: driver-API replay of miniZ's extracted fatbin (src/miniz/)

Also includes a default-off pearlhash backend (src/pearl/, native CPU core +
NVRTC int8-GEMM GPU kernels) and a WIP Ethash CUDA backend (src/ethash/).

Reverse-engineering scratch (alpha-miner, pearl-dump/) and the active runtime
config (mine.toml) are gitignored; mine.example.toml is the template.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,19 @@
+# Rust build artifacts
+/target
+
+# IDE / editor
+/.idea
+
+# Claude Code — keep shared settings.json, ignore machine-local overrides
+/.claude/settings.local.json
+
+# Active runtime config (copy mine.example.toml to create it; may hold a wallet)
+/mine.toml
+
+# Reverse-engineering scratch & competitor binaries — kept local, not committed.
+# Not part of the miner; pearl-dump also holds a 108 MB file over GitHub's limit.
+/alpha-miner
+/pearl-dump/
+
+# OS cruft
+.DS_Store