Peer icons: faster, accurate reachability\n\n- Run connectivity checks every maintenance tick (5s)\n- Publish peer snapshots on central unsubscribe for instant UI refresh\n- Lower inactivity timeout to 8s and disconnect debounce to 0.9s\n- Gate reachability on mesh-attached (>=1 direct link); no links => no reachable peers\n- Keep 21s retention for verified/unverified, but only when attached to mesh\n\nImproves list responsiveness when walking out of range and prevents stale 'reachable' states when isolated.

bitchat/Services/BLEService.swift

@@ -528,8 +528,17 @@ final class BLEService: NSObject {
             }
             return peerID
         }()
-        // A peer is reachable if we have a recent entry for it (connected or recently seen via mesh)
-        return collectionsQueue.sync { peers[shortID] != nil }
+        return collectionsQueue.sync {
+            // Must be mesh-attached: at least one live direct link to the mesh
+            let meshAttached = peers.values.contains { $0.isConnected }
+            guard let info = peers[shortID] else { return false }
+            if info.isConnected { return true }
+            guard meshAttached else { return false }
+            // Apply reachability retention window
+            let isVerified = info.isVerifiedNickname
+            let retention: TimeInterval = isVerified ? TransportConfig.bleReachabilityRetentionVerifiedSeconds : TransportConfig.bleReachabilityRetentionUnverifiedSeconds
+            return Date().timeIntervalSince(info.lastSeen) <= retention
+        }
     }
 
     func peerNickname(peerID: String) -> String? {
@@ -1995,10 +2004,8 @@ final class BLEService: NSObject {
         updateScanningDutyCycle(connectedCount: connectedCount)
         updateRSSIThreshold(connectedCount: connectedCount)
         
-        // Every 20 seconds (2 cycles): Check peer connectivity
-        if maintenanceCounter % 2 == 0 {
-            checkPeerConnectivity()
-        }
+        // Check peer connectivity every cycle for snappier UI updates
+        checkPeerConnectivity()
         
         // Every 30 seconds (3 cycles): Cleanup
         if maintenanceCounter % 3 == 0 {
@@ -2847,6 +2854,8 @@ extension BLEService: CBPeripheralManagerDelegate {
                 let currentPeerIDs = self.collectionsQueue.sync { Array(self.peers.keys) }
                 
                 self.notifyPeerDisconnectedDebounced(peerID)
+                // Publish snapshots so UnifiedPeerService can refresh icons promptly
+                self.publishFullPeerData()
                 self.delegate?.didUpdatePeerList(currentPeerIDs)
             }
         }

bitchat/Services/TransportConfig.swift

@@ -71,7 +71,9 @@ enum TransportConfig {
     static let bleRSSIIsolatedRelaxed: Int = -92
     static let bleRSSIConnectedThreshold: Int = -85
     static let bleRSSIHighTimeoutThreshold: Int = -80
-    static let blePeerInactivityTimeoutSeconds: TimeInterval = 20.0
+    // How long without seeing traffic before we sanity-check the direct link
+    // Lowered to make connected→reachable icon changes react faster when walking out of range
+    static let blePeerInactivityTimeoutSeconds: TimeInterval = 8.0
     // How long to retain a peer as "reachable" (not directly connected) since lastSeen
     static let bleReachabilityRetentionVerifiedSeconds: TimeInterval = 21.0    // 21s for verified/favorites
     static let bleReachabilityRetentionUnverifiedSeconds: TimeInterval = 21.0  // 21s for unknown/unverified
@@ -144,7 +146,8 @@ enum TransportConfig {
     static let bleDirectedSpoolWindowSeconds: TimeInterval = 15.0
 
     // Log/UI debounce windows
-    static let bleDisconnectNotifyDebounceSeconds: TimeInterval = 1.5
+    // Shorter debounce so UI reacts faster while still suppressing duplicate callbacks
+    static let bleDisconnectNotifyDebounceSeconds: TimeInterval = 0.9
     static let bleReconnectLogDebounceSeconds: TimeInterval = 2.0
 
     // Weak-link cooldown after connection timeouts

bitchat/Services/UnifiedPeerService.swift

@@ -68,6 +68,9 @@ class UnifiedPeerService: ObservableObject, TransportPeerEventsDelegate {
     
     private func updatePeers() {
         let meshPeers = meshService.currentPeerSnapshots()
+        // If we have no direct links at all, peers should not be marked reachable
+        // "Reachable" means mesh-attached via at least one live link.
+        let hasAnyConnected = meshPeers.contains { $0.isConnected }
         let favorites = favoritesService.favorites
         
         var enrichedPeers: [BitchatPeer] = []
@@ -81,7 +84,8 @@ class UnifiedPeerService: ObservableObject, TransportPeerEventsDelegate {
             
             let peer = buildPeerFromMesh(
                 peerInfo: peerInfo,
-                favorites: favorites
+                favorites: favorites,
+                meshAttached: hasAnyConnected
             )
             
             enrichedPeers.append(peer)
@@ -163,7 +167,8 @@ class UnifiedPeerService: ObservableObject, TransportPeerEventsDelegate {
     
     private func buildPeerFromMesh(
         peerInfo: TransportPeerSnapshot,
-        favorites: [Data: FavoritesPersistenceService.FavoriteRelationship]
+        favorites: [Data: FavoritesPersistenceService.FavoriteRelationship],
+        meshAttached: Bool
     ) -> BitchatPeer {
         // Determine reachability based on lastSeen and identity trust
         let now = Date()
@@ -171,7 +176,9 @@ class UnifiedPeerService: ObservableObject, TransportPeerEventsDelegate {
         let isVerified = fingerprint.map { SecureIdentityStateManager.shared.isVerified(fingerprint: $0) } ?? false
         let isFav = peerInfo.noisePublicKey.flatMap { favorites[$0]?.isFavorite } ?? false
         let retention: TimeInterval = (isVerified || isFav) ? TransportConfig.bleReachabilityRetentionVerifiedSeconds : TransportConfig.bleReachabilityRetentionUnverifiedSeconds
-        let isReachable = now.timeIntervalSince(peerInfo.lastSeen) <= retention
+        // A peer is reachable if we recently saw them AND we are attached to the mesh
+        let withinRetention = now.timeIntervalSince(peerInfo.lastSeen) <= retention
+        let isReachable = peerInfo.isConnected ? true : (withinRetention && meshAttached)
 
         var peer = BitchatPeer(
             id: peerInfo.id,