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32c50d1cfe
Settings > Radio gains a repeater toggle, 16 community-suggested radio presets plus manual Freq/SF/BW/CR tuning (digit-by-digit Freq editor), 4 persisted user preset slots, and the packet pool bumped 16->32 so queued retransmits stop starving incoming-packet allocation while relaying. Four opt-in politeness knobs (skip-advert, max-hops, yield, min-SNR), all flood-only and off by default, plus overhear suppression that cancels a queued retransmit if a peer relays the same packet first. Adaptive Power Control is suppressed while relaying (pins TX power to the ceiling) and duty-cycle RX is forced off, since a repeater needs to hear and relay at consistent power. A dedicated Tools > Repeater screen consolidates the toggle, the politeness knobs, and live forwarding stats, plus an optional "Custom" radio profile — a dedicated frequency/SF/BW/CR for relaying, separate from the companion's own network, band-matched to the companion frequency by default and used everywhere a radio change can happen (boot, on-device toggle, app-driven CMD_SET_RADIO_PARAMS, Settings radio edits) so the device never silently falls back to the wrong params mid-relay. Diagnostics gains the actually-forwarded packet count, real heap-free via mallinfo(), a reset-counters popup, and hardened loop-detect bounds. Also: a frequency-floor fix and a float-equality preset-match fix in the repeater profile logic, deduped BW-table/valCol/profile- seeding helpers shared between Settings and the Repeater screen, and a build.sh fix tolerating control characters in `pio project config`'s JSON dump. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>