Release fixture history gate after verified member synchronization

tests/test_encrypted_attachment.c

@@ -12,6 +12,7 @@
 #include "../src/chat/chat_core.h"
 #include "../src/chat/chat_attachment.h"
 #include "../src/chat/member_sync.h"
+#include "../src/chat/db_sync.h"
 #include "../src/chat/chat_setting.h"
 #include "../src/routing_layer/topo_node_sqlite.h"
 #include "../src/routing_layer/topo_group.h"
@@ -80,6 +81,15 @@ static int start_node(struct media_test* t, int index) {
     return t->nodes[index] ? utun_instance_init(t->nodes[index]) : -1;
 }
 
+/* Фикстура создаёт канал напрямую, поэтому сама снимает gate после реального Merkle round. */
+static void members_ready(uint64_t peer, const char* channel, int result, void* arg) {
+    struct UTUN_INSTANCE* inst = arg;
+    DEBUG_INFO(DEBUG_CATEGORY_MEDIA, "encrypted fixture: members verified local=%llu peer=%llu channel=%s result=%d",
+               (unsigned long long)inst->node_id, (unsigned long long)peer, channel, result);
+    struct DB_SYNC_INSTANCE* sync = db_sync_instance_find(inst, GROUP);
+    if (result == MT_OK && sync) db_sync_instance_set_gated(sync, 0);
+}
+
 static int setup(struct media_test* t) {
     for (int i = 0; i < NODES; i++) {
         struct UTUN_INSTANCE* inst = t->nodes[i];
@@ -100,7 +110,11 @@ static int setup(struct media_test* t) {
             if (member_sync_put(inst, CHANNEL, t->ids[j], t->keys[j].public_key, t->ed[j], join, ts,
                                 NULL, 0, info, tags, adm_sig, 0, 0, certificate) < 0) return -1;
         }
-        if (i != S) member_sync_start(inst, t->ids[S], CHANNEL, NULL, NULL);
+    }
+    for (int i = 0; i < NODES; i++) {
+        if (i == S) continue;
+        if (member_sync_start(t->nodes[i], t->ids[S], CHANNEL, members_ready, t->nodes[i]) < 0 ||
+            member_sync_start(t->nodes[S], t->ids[i], CHANNEL, members_ready, t->nodes[S]) < 0) return -1;
     }
     return 0;
 }