Public release Open Pearl Miner (AMD support)

Maintenance release.

Changes
Hashrate display fix. The TH/s readout counted 1e6 hashes per 16×16 tile, but a tile is 16164096 = 2^20 (1,048,576) MACs — the convention the kernel benchmark already uses. The display was under-reporting the true hashrate by ~4.9%; now consistent across the pool and solo paths. Same physical mining — your reported number rises ~5% (e.g. a card showing 28.2 now correctly shows ~29.6).
Internal: cache the GPU compute capability in the per-region hot path instead of re-querying it every region (no perf change).