dm: прямой обмен сообщениями (DM) + soundtouch + архитектура звонков

- src/dm/: dm_core/dm_crypto/dm_mailbox — прямой обмен сообщениями (DM)
- lib/soundtouch-master/: vendored SoundTouch (изменение темпа/высоты аудио)
- doc/dm_arch.md, doc/chat_call_arch.md: архитектура DM и звонков
- tests: test_dm.c, test_dm_e2e.c
- chat: рефакторинг chat_* модулей, member_sync, invite_build
- chatgui/chatgui-android: синхронизация с новым API чата
- lib/u_async, debug_config, utun_instance: сопутствующие изменения

tools/chatgui/src/mainwindow.cpp

@@ -62,9 +62,11 @@ static void postUiStateKv(const char* key, const QString& value) {
     QByteArray val = value.toUtf8();
     size_t klen = strlen(key), vlen = (size_t)val.size(), total = klen + 1 + vlen + 1;
     if (total > 256) return;
-    void* arg = u_malloc(total);
-    memcpy(arg, key, klen + 1);
-    memcpy((char*)arg + klen + 1, val.constData(), vlen + 1);
+    struct save_ui_state_arg* arg = (struct save_ui_state_arg*)u_malloc(sizeof(struct save_ui_state_arg));
+    if (!arg) return;
+    arg->inst = gui_bridge_get_inst();
+    memcpy(arg->data, key, klen + 1);
+    memcpy(arg->data + klen + 1, val.constData(), vlen + 1);
     gui_bridge_post_uasync_fn(chat_core_save_ui_state_trampoline, arg);
 }
 
@@ -369,7 +371,7 @@ void MainWindow::setupBridgeCallbacks() {
     gui_bridge_set_channel_peers_online_cb(onChannelPeersOnlineCallback);
     gui_bridge_set_db_ready_cb([]() {
         if (!s_mainWindow || !s_mainWindow->m_db) return;
-        s_mainWindow->m_db->setDb(chat_core_get_db());
+        s_mainWindow->m_db->setDb(chat_core_get_db(gui_bridge_get_inst()));
         s_mainWindow->m_channelList->loadChannels();
         s_mainWindow->restoreWindowGeometry();
         QString lastCid = s_mainWindow->m_db->getUiState("last_channel_id");
@@ -424,9 +426,12 @@ void MainWindow::setupConnects() {
                 m_currentChannelId = channelId;
                 m_messageList->loadChannel(channelId);
                 m_accountList->setChannel(channelId);
-                QByteArray cidBA = channelId.toUtf8();
-                char* cid = u_strdup(cidBA.constData());
-                if (cid) gui_bridge_post_uasync_fn(chat_core_connect_channel_trampoline, cid);
+                struct chat_create_auto_arg* arg = (struct chat_create_auto_arg*)u_calloc(1, sizeof(*arg));
+                if (arg) {
+                    arg->inst = gui_bridge_get_inst();
+                    snprintf(arg->name, sizeof(arg->name), "%s", channelId.toUtf8().constData());
+                    gui_bridge_post_uasync_fn(chat_core_connect_channel_trampoline, arg);
+                }
             });
     connect(m_channelList, &ChannelList::inviteRequested,         this, &MainWindow::showShareInviteDialog);
     connect(m_channelList, &ChannelList::inviteByLinkRequested,  this, &MainWindow::showInviteByLinkDialog);
@@ -671,7 +676,15 @@ void MainWindow::onCreateGroupRequested() {
     if (name.isEmpty()) return;
 
     char* name_copy = u_strdup(name.toUtf8().constData());
-    if (name_copy) gui_bridge_post_uasync_fn(chat_core_create_channel_auto_trampoline, name_copy);
+    if (name_copy) {
+        struct chat_create_auto_arg* arg = (struct chat_create_auto_arg*)u_malloc(sizeof(*arg));
+        if (arg) {
+            arg->inst = gui_bridge_get_inst();
+            snprintf(arg->name, sizeof(arg->name), "%s", name_copy);
+            gui_bridge_post_uasync_fn(chat_core_create_channel_auto_trampoline, arg);
+        }
+        u_free(name_copy);
+    }
 
     DEBUG_INFO(DEBUG_CATEGORY_DEBUG, "MainWindow: create group request posted name=%s", qPrintable(name));
 }
@@ -734,6 +747,7 @@ void MainWindow::autoPlayCheckNewMessage(const QString& channelId) {
         u_malloc(sizeof(struct attachment_dl_req));
     if (!req) return;
     memset(req, 0, sizeof(*req));
+    req->inst = gui_bridge_get_inst();
     strncpy(req->channel_id, channelId.toUtf8().constData(), sizeof(req->channel_id) - 1);
     req->msg_id = msg.id;
     gui_bridge_post_uasync_fn(chat_core_attachment_download_trampoline, req);
@@ -787,6 +801,7 @@ void MainWindow::autoPlayTimerTick() {
                 u_malloc(sizeof(struct attachment_dl_req));
             if (!req) return;
             memset(req, 0, sizeof(*req));
+            req->inst = gui_bridge_get_inst();
             strncpy(req->channel_id, item.channelId.toUtf8().constData(), sizeof(req->channel_id) - 1);
             req->msg_id = item.msgId;
             gui_bridge_post_uasync_fn(chat_core_attachment_download_trampoline, req);