Keep parity diagnostics and archive reads compatible with older Android

app/src/main/java/com/bitchat/android/mesh/MeshPingManager.kt

@@ -80,7 +80,7 @@ internal class MeshPingManager(
                     times.lastOrNull()?.let { now - it >= MeshDiagnosticsConstants.INBOUND_RATE_WINDOW_MILLIS } != false
                 }
             }
-            if (inboundByLink.size >= 256 && link !in inboundByLink) return false
+            if (inboundByLink.size >= 256 && !inboundByLink.containsKey(link)) return false
             inboundByLink.putIfAbsent(link, ArrayDeque())
         }
         val timestamps = inboundByLink[link] ?: return false

app/src/main/java/com/bitchat/android/sync/GossipSyncManager.kt

@@ -457,15 +457,18 @@ class GossipSyncManager(
         if (!file.exists()) return
         try {
             restoringArchive = true
-            val input = java.io.DataInputStream(file.inputStream().buffered())
-            val count = input.readInt().coerceIn(0, configProvider.seenCapacity())
-            repeat(count) {
-                val length = input.readInt()
-                if (length <= 0 || length > com.bitchat.android.util.AppConstants.Protocol.MAX_PAYLOAD_LENGTH + 256) return@repeat
-                val packet = com.bitchat.android.protocol.BinaryProtocol.decode(input.readNBytes(length)) ?: return@repeat
-                onPublicPacketSeen(packet)
+            java.io.DataInputStream(file.inputStream().buffered()).use { input ->
+                val count = input.readInt()
+                require(count in 0..configProvider.seenCapacity())
+                repeat(count) {
+                    val length = input.readInt()
+                    require(length in 1..(com.bitchat.android.util.AppConstants.Protocol.MAX_PAYLOAD_LENGTH + 256))
+                    val bytes = ByteArray(length)
+                    input.readFully(bytes)
+                    val packet = com.bitchat.android.protocol.BinaryProtocol.decode(bytes) ?: return@repeat
+                    onPublicPacketSeen(packet)
+                }
             }
-            input.close()
         } catch (_: Exception) {
             synchronized(messages) { messages.clear() }
         } finally {

app/src/main/java/com/bitchat/android/ui/LocationChannelsSheet.kt

@@ -233,13 +233,16 @@ fun LocationChannelsSheet(
                     // Mesh section: icon + title header, offline subtitle, then selection card
                     (selectedChannel as? ChannelID.Location)?.channel?.geohash?.let { cell ->
                         item(key = "share_channel") {
+                            val shareTitle = stringResource(R.string.share_channel)
+                            val link = com.bitchat.android.services.ChannelInvitation.link(cell)
+                            val invitation = stringResource(R.string.channel_invitation, cell, link.orEmpty())
                             androidx.compose.material3.TextButton(onClick = {
                                 val link = com.bitchat.android.services.ChannelInvitation.link(cell)
                                 if (link != null) context.startActivity(android.content.Intent.createChooser(
                                     android.content.Intent(android.content.Intent.ACTION_SEND).apply {
                                         type = "text/plain"
-                                        putExtra(android.content.Intent.EXTRA_TEXT, context.getString(R.string.channel_invitation, cell, link))
-                                    }, context.getString(R.string.share_channel)))
+                                        putExtra(android.content.Intent.EXTRA_TEXT, invitation)
+                                    }, shareTitle))
                             }, modifier = Modifier.fillMaxWidth()) { Text(stringResource(R.string.share_channel)) }
                         }
                     }

app/src/main/res/values/strings.xml

@@ -184,7 +184,7 @@
   <string name="about_no_tracking_desc">No servers, accounts, or data collection.</string>
   <string name="about_ephemeral_title">Ephemeral Identity</string>
   <string name="about_ephemeral_desc">A new peer ID is generated regularly.</string>
-  <string name="about_panic_desc">Triple-tap the logo to instantly clear all data.</string>
+  <string name="about_panic_desc">Triple-tap the logo to review and confirm erasing local app data.</string>
 
   <!-- About sheet: settings labels -->
   <string name="about_tor_title">Tor Network</string>

docs/ios-feature-parity-review.md

@@ -116,7 +116,8 @@ Physical Mesh Lab and Android-to-iOS interoperability are required separately:
 - One-time-prekey races and consumption persistence, plus iOS vectors on both
   real clients. Static screenshots cannot establish any of these properties.
 
-Full locale coverage, accessibility review and the physical matrix remain
+The updated panic-help sentence falls back to English where previous translations
+still promised immediate erasure; those stale claims are removed. Full locale coverage, accessibility review and the physical matrix remain
 release work. Manual-channel Nostr board publication still obeys the existing
 location-note privacy gate; this integration does not weaken it to force a
 successful publish. No claim is made that this large integration is ready to