Remove transport node feature — ratdeck is endpoint only

These standalone devices should not act as transport nodes.
Remove the config toggle, settings UI, and boot-time config peek.
Hardcode transport_enabled(false).

src/config/UserConfig.cpp

@@ -53,7 +53,6 @@ bool UserConfig::parseJson(const String& json) {
     _settings.denseFontMode    = doc["dense_font"] | false;
     _settings.trackballSpeed   = doc["trackball_speed"] | 3;
     _settings.touchSensitivity = doc["touch_sens"] | 3;
-    _settings.transportEnabled = doc["transport"] | false;
     _settings.bleEnabled       = doc["ble_enabled"] | true;
 
     _settings.audioEnabled = doc["audio_on"]  | true;
@@ -95,7 +94,6 @@ String UserConfig::serializeToJson() const {
     doc["dense_font"] = _settings.denseFontMode;
     doc["trackball_speed"] = _settings.trackballSpeed;
     doc["touch_sens"] = _settings.touchSensitivity;
-    doc["transport"] = _settings.transportEnabled;
     doc["ble_enabled"] = _settings.bleEnabled;
 
     doc["audio_on"]  = _settings.audioEnabled;

src/config/UserConfig.h

@@ -47,9 +47,6 @@ struct UserSettings {
     // Touch
     uint8_t touchSensitivity = 3;     // 1-5
 
-    // Network
-    bool transportEnabled = false;  // Transport node (rebroadcasts packets)
-
     // BLE
     bool bleEnabled = true;
 

src/main.cpp

@@ -458,20 +458,6 @@ void setup() {
     lvBootScreen.setProgress(0.65f, "Starting Reticulum...");
     // (LVGL boot renders via lv_timer_handler in setProgress)
     rns.setSDStore(&sdStore);
-    // Transport mode is loaded later from config; default is endpoint (no rebroadcast)
-    // We load a quick peek at the config to get the transport setting before RNS init
-    {
-        String json = sdStore.isReady() ? sdStore.readString(SD_PATH_USER_CONFIG) : "";
-        if (json.isEmpty()) json = flash.readString(PATH_USER_CONFIG);
-        if (!json.isEmpty()) {
-            JsonDocument peek;
-            if (!deserializeJson(peek, json)) {
-                bool transport = peek["transport"] | false;
-                rns.setTransportEnabled(transport);
-                Serial.printf("[BOOT] Transport mode: %s\n", transport ? "ON" : "OFF");
-            }
-        }
-    }
     if (rns.begin(&radio, &flash)) {
         Serial.printf("[BOOT] Identity: %s\n", rns.identityHash().c_str());
         lvBootScreen.setProgress(0.72f, "Reticulum active");

src/reticulum/ReticulumManager.cpp

@@ -91,19 +91,12 @@ bool ReticulumManager::begin(SX1262* radio, FlashStore* flash) {
     }
 
     _reticulum = RNS::Reticulum();
-    RNS::Reticulum::transport_enabled(_transportEnabled);
+    RNS::Reticulum::transport_enabled(false);
     RNS::Reticulum::probe_destination_enabled(true);
-    if (_transportEnabled) {
-        // Transport node: larger tables for routing
-        RNS::Transport::path_table_maxsize(64);
-        RNS::Transport::announce_table_maxsize(64);
-    } else {
-        // Endpoint: smaller tables, no rebroadcasting
-        RNS::Transport::path_table_maxsize(32);
-        RNS::Transport::announce_table_maxsize(32);
-    }
+    RNS::Transport::path_table_maxsize(32);
+    RNS::Transport::announce_table_maxsize(32);
     _reticulum.start();
-    Serial.printf("[RNS] Reticulum started (%s)\n", _transportEnabled ? "Transport Node" : "Endpoint");
+    Serial.println("[RNS] Reticulum started (Endpoint)");
 
     // Layer 1: Transport-level announce rate limiter — filters BEFORE Ed25519 verify
     RNS::Transport::set_filter_packet_callback([](const RNS::Packet& packet) -> bool {
@@ -137,7 +130,7 @@ bool ReticulumManager::begin(SX1262* radio, FlashStore* flash) {
     _destination.accepts_links(true);
 
     _transportActive = true;
-    Serial.printf("[RNS] %s active\n", _transportEnabled ? "Transport node" : "Endpoint");
+    Serial.println("[RNS] Endpoint active");
     return true;
 }
 

src/reticulum/ReticulumManager.h

@@ -39,7 +39,6 @@ public:
 
     bool begin(SX1262* radio, FlashStore* flash);
     void setSDStore(SDStore* sd) { _sd = sd; }
-    void setTransportEnabled(bool enabled) { _transportEnabled = enabled; }
     void loop();
     void persistData();
 
@@ -69,7 +68,6 @@ private:
     LoRaInterface* _loraImpl = nullptr;
     FlashStore* _flash = nullptr;
     SDStore* _sd = nullptr;
-    bool _transportEnabled = false;  // Default: endpoint mode (no rebroadcast)
     bool _transportActive = false;
     unsigned long _lastPersist = 0;
     unsigned long _lastAnnounceTime = 0;

src/ui/screens/LvSettingsScreen.cpp

@@ -321,11 +321,6 @@ void LvSettingsScreen::buildItems() {
         },
         [](int v) { return String(v); }, 1, 65535, 1});
     idx++;
-    _items.push_back({"Transport Node", SettingType::TOGGLE,
-        [&s]() { return s.transportEnabled ? 1 : 0; },
-        [&s](int v) { s.transportEnabled = (v != 0); },
-        [](int v) { return v ? String("ON") : String("OFF"); }});
-    idx++;
     _items.push_back({"BLE", SettingType::TOGGLE,
         [&s]() { return s.bleEnabled ? 1 : 0; },
         [&s](int v) { s.bleEnabled = (v != 0); },
@@ -1074,7 +1069,6 @@ void LvSettingsScreen::snapshotRebootSettings() {
     _rebootSnap.wifiSTASSID = s.wifiSTASSID;
     _rebootSnap.wifiSTAPassword = s.wifiSTAPassword;
     _rebootSnap.bleEnabled = s.bleEnabled;
-    _rebootSnap.transportEnabled = s.transportEnabled;
 }
 
 bool LvSettingsScreen::rebootSettingsChanged() const {
@@ -1083,8 +1077,7 @@ bool LvSettingsScreen::rebootSettingsChanged() const {
     return s.wifiMode != _rebootSnap.wifiMode
         || s.wifiSTASSID != _rebootSnap.wifiSTASSID
         || s.wifiSTAPassword != _rebootSnap.wifiSTAPassword
-        || s.bleEnabled != _rebootSnap.bleEnabled
-        || s.transportEnabled != _rebootSnap.transportEnabled;
+        || s.bleEnabled != _rebootSnap.bleEnabled;
 }
 
 void LvSettingsScreen::snapshotTCPSettings() {

src/ui/screens/LvSettingsScreen.h

@@ -141,7 +141,6 @@ private:
         String wifiSTASSID;
         String wifiSTAPassword;
         bool bleEnabled;
-        bool transportEnabled;
     };
     RebootSnapshot _rebootSnap;
     void snapshotRebootSettings();