fix: remove stale peers_* CREATE TABLE from chat_core, drop ORDER BY node_RTT

chat_core_ensure_channel_ready() had a duplicate CREATE TABLE peers_*
with OLD schema (no node_RTT, node_type, connected). Since it was called
from 4 places WITHOUT topo_node_sqlite_channel_put() first, the old
schema was created first, and IF NOT EXISTS in the new DDL was a no-op.

Removed the entire old block. Only topo_node_sqlite_channel_put() now
creates peers_* tables with the full schema.

Also removed ORDER BY p.node_RTT from get_public_peers/get_local_peers —
ordering not needed for sequential connect attempts.

src/routing_layer/topo_node_sqlite.c

@@ -770,8 +770,7 @@ int topo_node_sqlite_get_public_peers(sqlite3* db, const char* channel_id,
     snprintf(sql, sizeof(sql),
         "SELECT p.node_id FROM \"%s\" p"
         " WHERE p.node_id!=? AND EXISTS (SELECT 1 FROM node_addresses a"
-        " WHERE a.node_id=p.node_id AND a.family=4 AND a.addr_type IN (1,2))"
-        " ORDER BY p.node_RTT", peers_tbl);
+        " WHERE a.node_id=p.node_id AND a.family=4 AND a.addr_type IN (1,2)))", peers_tbl);
     sqlite3_stmt* st = NULL;
     if (sqlite3_prepare_v2(db, sql, -1, &st, NULL) != SQLITE_OK) return -1;
     sqlite3_bind_int64(st, 1, (sqlite3_int64)self_node_id);
@@ -796,8 +795,7 @@ int topo_node_sqlite_get_local_peers(sqlite3* db, const char* channel_id,
     snprintf(sql, sizeof(sql),
         "SELECT p.node_id FROM \"%s\" p"
         " WHERE p.node_id!=? AND EXISTS (SELECT 1 FROM node_addresses a"
-        " WHERE a.node_id=p.node_id AND a.family=4 AND a.addr_type IN (0,3))"
-        " ORDER BY p.node_RTT", peers_tbl);
+        " WHERE a.node_id=p.node_id AND a.family=4 AND a.addr_type IN (0,3)))", peers_tbl);
     sqlite3_stmt* st = NULL;
     if (sqlite3_prepare_v2(db, sql, -1, &st, NULL) != SQLITE_OK) return -1;
     sqlite3_bind_int64(st, 1, (sqlite3_int64)self_node_id);

tools/chatgui/transport/chat_core.c

@@ -634,32 +634,6 @@ void chat_core_ensure_channel_ready(const char* ch_id) {
 
     char tbl_msg[80]; msg_table_name(ch_id, tbl_msg, sizeof(tbl_msg));
 
-    char tbl_peers[80]; peers_table_name(ch_id, tbl_peers, sizeof(tbl_peers));
-    char sql[512];
-    snprintf(sql, sizeof(sql),
-        "CREATE TABLE IF NOT EXISTS \"%s\" ("
-        "  node_id          INTEGER PRIMARY KEY,"     /* уникальный ID узла (64-bit) */
-        "  x25519_pubkey    BLOB NOT NULL,"           /* X25519 публичный ключ (32 байта) */
-        "  ed25519_pubkey   BLOB,"                    /* Ed25519 публичный ключ (32 байта) — верификация join_sig/update_sig */
-        "  join_sig         BLOB,"                    /* Ed25519 подпись присоединения (PEERS_JOIN_SIG_SIZE=64).
-                                                        signed: ch_x25519(32)||ch_ed25519(32)||node_id(8 LE)||x25519(32)||join_ts(8 LE) */
-        "  join_ts          INTEGER DEFAULT 0,"       /* NTP timestamp подписи join_sig — защита от replay */
-        "  update_sig       BLOB,"                    /* Ed25519 подпись обновления userinfo (PEERS_UPDATE_SIG_SIZE=64).
-                                                        signed: join_sig(64)||update_ts(8 LE)||userinfo(NUL-terminated) */
-        "  update_ts        INTEGER DEFAULT 0,"       /* NTP timestamp подписи update_sig */
-        "  userinfo         TEXT NOT NULL DEFAULT ''," /* JSON с информацией о пользователе: {"name":"<display_name>"}.
-                                                        извлекается через json_flat_get(userinfo, "name", ...) */
-        "  creator_sig      BLOB,"                    /* Ed25519 подпись создателя (PEERS_JOIN_SIG_SIZE=64).
-                                                        в CHANNEL_INFO_RESP ставится join_sig инвайтера, иначе NULL (заглушка) */
-        "  comment          TEXT,"                    /* произвольная заметка (пока не используется в логике) */
-        "  joined_at        INTEGER DEFAULT (unixepoch())" /* NTP timestamp добавления записи в таблицу */
-        ")", tbl_peers);
-    db_exec(sql);
-
-    // Migration: rename old 'name' column to 'userinfo' (match server schema)
-    snprintf(sql, sizeof(sql), "ALTER TABLE \"%s\" RENAME COLUMN name TO userinfo", tbl_peers);
-    sqlite3_exec(g_cc.db, sql, NULL, NULL, NULL);
-
     uint64_t ch_hash = 0;
     { const uint8_t* chd = (const uint8_t*)ch_id; size_t chl = strlen(ch_id); uint8_t sh[32]; SHA256(chd, chl, sh); memcpy(&ch_hash, sh, 8); }
     struct DB_SYNC_INSTANCE* si = db_sync_instance_add(g_cc.inst, tbl_msg, ch_hash);