ESPGeiger v0.9.2

Features

• Tube detection flags (α/β/γ) — input prefs + handshake td bitmask
• Dead-time correction in CPS path, default 100 µs (0.005% correction)
• GRNG non-crypto fast paths
• LED prefs split into own /prefs group

Enhancements

• WebAPI ping stagger re-applied on catch-up
• Blip/quiet prefs gating fixed for ESPG-HW

Bugfixes

• Test-mode handshake retry loop