v0.3.6

[0.3.6] - 2026-08-07

Added

• New optional device fields on activate / validate / keyless. The SDK now
  reports the device's OS version (dotted-numeric, e.g. 15.5 on macOS, the
  kernel release on Linux) and CPU architecture (arm64 / x86_64) alongside
  the existing telemetry fields. Both are collected with platform APIs already
  in use — no new dependencies — and omitted when they can't be read cleanly.
  No API change and nothing to do in your code.
• Coarse hardware shape on the same requests. cpu_cores and memory are
  reported as ranges (5-8, 16-32GB), never as exact values — the precise
  core count and RAM size never leave the machine. Read via
  std::thread::available_parallelism and a per-OS memory query, with no new
  dependencies, and omitted when a platform can't be read cleanly.