Merge upstream companion-v1.18.0

Fixes and features from upstream: MACThenDecrypt / command buffer
overflow fixes, ACK forwarding delay, transport code 0 as unscoped,
hidden nodes don't answer DISCOVER, LR2021/LR1121 fixes, GPS cold-start
detection and waitFor()/drain(), NMEA fix-age counters, ESP32 RTC after a
crash, remote CLI by text message (TXT_TYPE_CLI_COMMAND),
PUSH_CODE_BINARY_RESPONSE, board.loop(), new boards (Wio Tracker L1 1W,
ThinkNode M4/M8, Muzi Base, Waveshare LR1121, Pico W).

Kept ours: NodePrefs, main.cpp, every UI, GxEPDDisplay. The companion CLI
stays MyMeshCli.h's handleCliCommand(); upstream's handleCommand() calls
it. The board's FEM gains go through attachDynamicPrefs() with an adapter
over our NodePrefs fields. Upstream's JSON prefs and MultiSerialInterface
come as their own stages.

Also: the display defaults were inside RADIO_FEM_TXGAIN's #else (a
missing #endif).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

variants/heltec_v4/HeltecV4Board.cpp

@@ -73,10 +73,50 @@ void HeltecV4Board::begin() {
     return true;
   }
 
-  bool HeltecV4Board::canControlLoRaFemLna() const {
-    return loRaFEMControl.isLnaCanControl();
-  }
-
   bool HeltecV4Board::isLoRaFemLnaEnabled() const {
     return loRaFEMControl.isLNAEnabled();
   }
+
+void HeltecV4Board::attachDynamicPrefs(KeyValueStore* prefs) {
+  _prefs = prefs;
+
+  char radio_fem_rxgain[8] = { 0 };
+  _prefs->getByKey("fem_rxgain", radio_fem_rxgain, 7);  // get initial values
+
+  setLoRaFemLnaEnabled(strcmp(radio_fem_rxgain, "1") == 0);
+}
+
+bool HeltecV4Board::handleCommand(const char* command, uint32_t sender_timestamp, char* reply) {
+  if (strcmp(command, "get radio.fem.rxgain") == 0) {
+    if (!loRaFEMControl.isLnaCanControl()) {
+      strcpy(reply, "Error: unsupported");
+    } else {
+      sprintf(reply, "> %s", isLoRaFemLnaEnabled() ? "on" : "off");
+    }
+    return true;
+  }
+  if (memcmp(command, "set radio.fem.rxgain ", 21) == 0) {
+    if (!loRaFEMControl.isLnaCanControl()) {
+      strcpy(reply, "Error: unsupported");
+    } else if (memcmp(&command[21], "on", 2) == 0) {
+      if (setLoRaFemLnaEnabled(true)) {
+        _prefs->setByKey("fem_rxgain", "1");
+        strcpy(reply, "OK - LoRa FEM RX gain on");
+      } else {
+        strcpy(reply, "Error: failed to apply LoRa FEM RX gain");
+      }
+    } else if (memcmp(&command[21], "off", 3) == 0) {
+      if (setLoRaFemLnaEnabled(false)) {
+        _prefs->setByKey("fem_rxgain", "0");
+        strcpy(reply, "OK - LoRa FEM RX gain off");
+      } else {
+        strcpy(reply, "Error: failed to apply LoRa FEM RX gain");
+      }
+    } else {
+      strcpy(reply, "Error: state must be on or off");
+    }
+    return true;
+  }
+
+  return false; // not handled
+}

variants/heltec_v4/HeltecV4Board.h

@@ -10,6 +10,10 @@
 #endif
 
 class HeltecV4Board : public ESP32Board {
+  KeyValueStore* _prefs = NULL;
+
+  bool setLoRaFemLnaEnabled(bool enable);
+  bool isLoRaFemLnaEnabled() const;
 
 protected:
   float adc_mult = ADC_MULTIPLIER;
@@ -20,12 +24,12 @@ public:
   HeltecV4Board() : periph_power(PIN_VEXT_EN,PIN_VEXT_EN_ACTIVE) { }
 
   void begin();
+  void attachDynamicPrefs(KeyValueStore* prefs);
+  bool handleCommand(const char* command, uint32_t sender_timestamp, char* reply) override;
+
   void onBeforeTransmit(void) override;
   void onAfterTransmit(void) override;
   void powerOff() override;
-  bool setLoRaFemLnaEnabled(bool enable) override;
-  bool canControlLoRaFemLna() const override;
-  bool isLoRaFemLnaEnabled() const override;
   uint16_t getBattMilliVolts() override;
   bool setAdcMultiplier(float multiplier) override {
     if (multiplier == 0.0f) {

variants/heltec_v4/platformio.ini

@@ -211,12 +211,14 @@ build_flags =
   -D AUTO_SHUTDOWN_MILLIVOLTS=3400
   -D BLE_DEBUG_LOGGING=1
   -D OFFLINE_QUEUE_SIZE=256
+  -D ENABLE_WIFI_INTERFACE
 ;  -D MESH_PACKET_LOGGING=1
 ;  -D MESH_DEBUG=1
 build_src_filter = ${heltec_v4_oled.build_src_filter}
   +<helpers/ui/SSD1306Display.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =
@@ -228,6 +230,7 @@ extends = heltec_v4_oled
 build_flags =
   ${heltec_v4_oled.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D OFFLINE_QUEUE_SIZE=256
@@ -241,6 +244,7 @@ build_src_filter = ${heltec_v4_oled.build_src_filter}
   +<helpers/ui/SSD1306Display.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =
@@ -393,6 +397,7 @@ extends = heltec_v4_tft
 build_flags =
   ${heltec_v4_tft.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D OFFLINE_QUEUE_SIZE=256
@@ -406,6 +411,7 @@ build_src_filter = ${heltec_v4_tft.build_src_filter}
   +<helpers/ui/ST7789LCDDisplay.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =