fix: stabilize primary ESP-NOW WiFi coexistence

test/test_cli_command_utils/test_cli_command_utils.cpp

@@ -755,6 +755,13 @@ TEST(WiFiChannelPolicy, FallsBackOnlyWhenTheStoredChannelIsInvalid) {
   EXPECT_EQ(1, mesh::wifi::validEspNowChannelOrDefault(14, 1));
 }
 
+TEST(WiFiChannelPolicy, RestoresOnlyWhenTheRadioActuallyMoved) {
+  EXPECT_FALSE(mesh::wifi::espNowChannelRestoreRequired(1, 1));
+  EXPECT_FALSE(mesh::wifi::espNowChannelRestoreRequired(6, 6));
+  EXPECT_TRUE(mesh::wifi::espNowChannelRestoreRequired(1, 6));
+  EXPECT_TRUE(mesh::wifi::espNowChannelRestoreRequired(13, 1));
+}
+
 TEST(CLICommandUtils, ObserverSettingsNeverStartADisabledBridge) {
   int calls = 0;
   EXPECT_TRUE(mesh::cli::restartBridgeIfEnabled(false, [&calls]() {

test/test_user_gpio/test_user_gpio.cpp

@@ -4,6 +4,7 @@
 #define P_LORA_HF_PA_POWER 3
 #define ST7789_CS 16
 #define ST7789_RS 15
+#define USER_GPIO_RESERVED_PINS 40, 41
 
 #include <Arduino.h>
 #include <helpers/UserGpio.h>
@@ -52,6 +53,12 @@ TEST(UserGpioPinPolicyTest, ReservesRadioPaAndSt7789ControlAliases) {
   EXPECT_FALSE(UserGpioPinPolicy::isFirmwareReserved(22));
 }
 
+TEST(UserGpioPinPolicyTest, ReservesBoardSpecificDirectIoPins) {
+  EXPECT_TRUE(UserGpioPinPolicy::isFirmwareReserved(40));
+  EXPECT_TRUE(UserGpioPinPolicy::isFirmwareReserved(41));
+  EXPECT_FALSE(UserGpioPinPolicy::isFirmwareReserved(39));
+}
+
 TEST_F(UserGpioTest, ListsOnlyBoardApprovedPins) {
   UserGpio gpio(board);