chat_join: модуль join-протокола, invite-ссылки v2, синхронизация мемберов

tools/chatgui/src/invite_link.cpp

@@ -116,6 +116,17 @@ InviteData decodeInviteLink(const QString& link) {
         chId = (chId << 8) | data[off++];
     d.channelId = chId;
 
+    /* join_key: uint64 big-endian */
+    if (off + 8 > len) {
+        d.error = QStringLiteral("truncated at join_key");
+        GUI_ERROR("decodeInviteLink: truncated at join_key");
+        return d;
+    }
+    uint64_t jk = 0;
+    for (int i = 0; i < 8; i++)
+        jk = (jk << 8) | data[off++];
+    d.joinKey = jk;
+
     bool firstBlock = true;
     while (off + 1 <= len) {
         uint8_t header = data[off++];

tools/chatgui/src/invite_link.h

@@ -21,6 +21,7 @@ struct InviteAddr {
 
 struct InviteData {
     uint64_t          channelId = 0;
+    uint64_t          joinKey = 0;   // 64-битный ключ входа (генерируется инвайтером)
     QByteArray        pubkey;
     QList<InviteAddr> addrs;
     QString           password;

tools/chatgui/src/joindialog.cpp

@@ -203,7 +203,7 @@ void JoinDialog::onConnectClicked() {
 
     chat_sync_connect_from_invite(d.channelId, nodeId,
         (const uint8_t*)d.pubkey.constData(),
-        (const uint8_t*)addrsBuf.constData(), addrCount, addrsBuf.size(), pass);
+        (const uint8_t*)addrsBuf.constData(), addrCount, addrsBuf.size(), pass, d.joinKey);
 }
 
 void JoinDialog::onConnectResult(uint64_t nodeId, uint64_t channelId, int result) {