* Repeater/Room server: new diagnostics, stats.n_full_events now repurposed to 'err_events' (bit flags)

* new Radio::isInRecvMode() method

src/helpers/esp32/ESPNOWRadio.h

@@ -15,6 +15,7 @@ public:
   bool startSendRaw(const uint8_t* bytes, int len) override;
   bool isSendComplete() override;
   void onSendFinished() override;
+  bool isInRecvMode() const override;
 
   uint32_t getPacketsRecv() const { return n_recv; }
   uint32_t getPacketsSent() const { return n_sent; }