- CadController (stats, window, re-anchor, visits, staircase, safety,
starvation relax) and NoiseFloorEstimator split out of LoRaRadioBase
behind a 4-call CadHw interface; Zephyr-free, host unit tests added
- prefs mandatory: setPrefs() before begin(), LoRaConfig fallbacks and the
companion/observer placeholder prefs removed; LoRaConfig is the one
defaults source (invalid-prefs fallback now uses the board TX default)
- TX-wait thread stack owned by the base; reconfigureWithParams removed
- driver extension headers on the public include path
(zephyr/drivers/lora/*.h); patch 0003 include updated
- comment diet (image-identical); rationale moved to devdocs LLD 03
