Firmware v20260603.123327

(Re-Released because of native linux bugfixes)

New

• Room Server (BBS) role (no auto-build, no repeater function)
• GAT562 30S Mesh Kit board support (nRF52840 + SX1262, RAK4631 core, 30 dBm PA) — one image for both the full kit and the screenless solar repeater.
• Production is now the default build — no more prod.conf; debug.conf is the opt-in for logging.
• USB companion decoupled from logging — CDC ACM transport now compiles independently of CONFIG_LOG. (companions are USB+BLE hybrid from now, only one type can be connected at a time)
• Linux native target — built and shipped as executables (companion + repeater).
• Battery reading should be more precise with board specific curve support and a standard lipo curve for devices that does not have any data on the internet about it's curve

Bug Fixes

• USB cable-yank no longer strands the companion on USB and blocks BLE until reboot.
• BLE/USB transport handoff reworked to first-come-first-served, made thread-safe.
• Zero-delay direct/zero-hop sends over BLE/USB no longer stall.
• Channel reply from the Unread screen now sends instead of silently failing.
• Repeater anon reply with a malformed return path now floods (safe fallback) instead of emitting a corrupt direct packet.
• Header-error frames now counted as receive errors (and no more zombie packet receptions triggered)
• Airtime/LDRO estimate fixed to track the driver across every SF/BW.
• RNG seed derivation hardened against hash failure.

Internals

• Crypto: orlp/ed25519 → Monocypher 4.0.2 — audited, single-file. Existing identities load/sign/verify unchanged — no re-key, no migration, full wire compatibility.
• Bumped west / pinned Zephyr tree.
• Synced with vanilla MeshCore dev.
• Split RepeaterMesh into Uplink + RegionCLI; deduped app-layer response/telemetry/JSON builders.
• Simplified the packet manager, dispatcher, and radio config paths.