ui: fix stale peer age display

src/reticulum/AnnounceManager.cpp

@@ -150,7 +150,8 @@ void AnnounceManager::received_announce(
     auto it = _hashIndex.find(key);
     if (it != _hashIndex.end()) {
         auto& node = _nodes[it->second];
-        if (now - node.lastSeen < ANNOUNCE_MIN_INTERVAL_MS) return;
+        if (node.lastSeen != 0 && now >= node.lastSeen &&
+            now - node.lastSeen < ANNOUNCE_MIN_INTERVAL_MS) return;
         if (!name.empty()) node.name = name;
         if (!idHex.empty()) node.identityHex = idHex;
         node.lastSeen = now;
@@ -253,7 +254,7 @@ int AnnounceManager::nodesOnlineSince(unsigned long maxAgeMs) const {
     unsigned long now = millis();
     int count = 0;
     for (const auto& n : _nodes) {
-        if (now - n.lastSeen <= maxAgeMs) count++;
+        if (n.lastSeen != 0 && now >= n.lastSeen && now - n.lastSeen <= maxAgeMs) count++;
     }
     return count;
 }
@@ -307,7 +308,7 @@ void AnnounceManager::evictStale(unsigned long maxAgeMs) {
     unsigned long now = millis();
     _nodes.erase(std::remove_if(_nodes.begin(), _nodes.end(),
         [now, maxAgeMs](const DiscoveredNode& n) {
-            return !n.saved && (now - n.lastSeen > maxAgeMs);
+            return !n.saved && (n.lastSeen == 0 || now < n.lastSeen || now - n.lastSeen > maxAgeMs);
         }), _nodes.end());
     rebuildIndex();
 }
@@ -343,8 +344,6 @@ void AnnounceManager::saveContact(const DiscoveredNode& node) {
     std::string hexHash = node.hash.toHex();
     JsonDocument doc;
     doc["hash"] = hexHash; doc["name"] = node.name;
-    doc["rssi"] = node.rssi; doc["snr"] = node.snr;
-    doc["hops"] = node.hops; doc["lastSeen"] = node.lastSeen;
     String json;
     serializeJson(doc, json);
     String filename = hexHash.substr(0, 16).c_str();
@@ -392,10 +391,12 @@ void AnnounceManager::loadContacts() {
                                 node.hash = hash;
                                 node.name = sanitizeName(doc["name"] | "");
                                 if (node.name.empty()) node.name = hexHash.substr(0, 12);
-                                node.rssi = doc["rssi"] | 0;
-                                node.snr = doc["snr"] | 0.0f;
-                                node.hops = doc["hops"] | 0;
-                                node.lastSeen = doc["lastSeen"] | (unsigned long)millis();
+                                // Contacts persist address-book data only. Radio/path state
+                                // is boot-relative and becomes misleading after restart.
+                                node.rssi = 0;
+                                node.snr = 0.0f;
+                                node.hops = 0;
+                                node.lastSeen = 0;
                                 node.saved = true;
                                 _hashIndex[key] = (int)_nodes.size();
                                 _nodes.push_back(node);

src/ui/screens/LvContactsScreen.cpp

@@ -50,14 +50,8 @@ std::string compactAge(unsigned long ageMs) {
     return buf;
 }
 
-std::string contactMetaFor(const DiscoveredNode& node, unsigned long ageMs) {
-    std::string age = compactAge(ageMs);
-    if (node.hops > 0 && node.hops < 128) {
-        char buf[24];
-        snprintf(buf, sizeof(buf), "%uH %s", (unsigned)node.hops, age.c_str());
-        return buf;
-    }
-    return age;
+std::string contactMetaFor(unsigned long ageMs) {
+    return compactAge(ageMs);
 }
 
 lv_obj_t* createEmptyState(lv_obj_t* parent) {
@@ -132,15 +126,17 @@ void LvContactsScreen::onEnter() {
 
 void LvContactsScreen::refreshUI() {
     if (!_am) return;
+    unsigned long now = millis();
     int contacts = 0;
     for (const auto& n : _am->nodes()) { if (n.saved) contacts++; }
-    if (contacts != _lastContactCount) {
+    if (contacts != _lastContactCount || now - _lastRebuild >= REBUILD_INTERVAL_MS) {
         rebuildList();
     }
 }
 
 void LvContactsScreen::rebuildList() {
     if (!_am || !_list) return;
+    _lastRebuild = millis();
     _contactIndices.clear();
 
     lv_obj_clean(_list);
@@ -224,7 +220,7 @@ void LvContactsScreen::rebuildList() {
         lv_obj_set_style_text_align(metaLbl, LV_TEXT_ALIGN_RIGHT, 0);
         lv_label_set_long_mode(metaLbl, LV_LABEL_LONG_CLIP);
         lv_obj_set_width(metaLbl, 64);
-        std::string meta = contactMetaFor(node, age);
+        std::string meta = contactMetaFor(age);
         lv_label_set_text(metaLbl, meta.c_str());
         lv_obj_set_pos(metaLbl, Theme::CONTENT_W - 72, 5);
 

src/ui/screens/LvContactsScreen.h

@@ -33,6 +33,8 @@ private:
     bool _focusActive = false;
     int _deleteIdx = -1;
     int _lastContactCount = -1;
+    unsigned long _lastRebuild = 0;
+    static constexpr unsigned long REBUILD_INTERVAL_MS = 30000;
     std::vector<int> _contactIndices;
     std::vector<std::vector<uint8_t>> _avatarBuffers;
 

src/ui/screens/LvNodesScreen.cpp

@@ -48,19 +48,8 @@ std::string compactAge(unsigned long ageMs) {
     return buf;
 }
 
-std::string hopTextFor(const DiscoveredNode& node) {
-    if (node.hops > 0 && node.hops < 128) {
-        char buf[12];
-        snprintf(buf, sizeof(buf), "%uhop", (unsigned)node.hops);
-        return buf;
-    }
-    return "";
-}
-
 std::string peerMetaFor(const DiscoveredNode& node, unsigned long ageMs, bool devMode) {
-    std::string meta = hopTextFor(node);
-    if (!meta.empty()) meta += " ";
-    meta += compactAge(ageMs);
+    std::string meta = compactAge(ageMs);
     if (devMode && node.rssi != 0) {
         char buf[14];
         snprintf(buf, sizeof(buf), " %ddB", node.rssi);
@@ -242,7 +231,8 @@ void LvNodesScreen::refreshUI() {
     for (const auto& n : _am->nodes()) { if (n.saved) contacts++; }
     int countDelta = abs(_am->nodeCount() - _lastNodeCount);
     int contactDelta = abs(contacts - _lastContactCount);
-    if (countDelta > 0 || contactDelta > 0) {
+    bool ageRefresh = now - _lastRebuild >= AGE_REBUILD_INTERVAL_MS;
+    if (countDelta > 0 || contactDelta > 0 || ageRefresh) {
         _lastRebuild = now;
         rebuildList();
     }
@@ -250,6 +240,7 @@ void LvNodesScreen::refreshUI() {
 
 void LvNodesScreen::rebuildList() {
     if (!_am || !_list) return;
+    _lastRebuild = millis();
     // Preserve scroll position across rebuilds
     lv_coord_t scrollY = lv_obj_get_scroll_y(_list);
     lv_obj_clean(_list);

src/ui/screens/LvNodesScreen.h

@@ -71,6 +71,7 @@ private:
 
     unsigned long _lastRebuild = 0;
     static constexpr unsigned long REBUILD_INTERVAL_MS = 5000;
+    static constexpr unsigned long AGE_REBUILD_INTERVAL_MS = 30000;
 
     lv_obj_t* _list = nullptr;
     lv_obj_t* _emptyState = nullptr;