Refresh both AGENTS guides and clarify module purpose, usage, ownership, threading, return values and wire formats in headers. Remove the unused timeout_heap freed_count field and unimplemented getter.
- категория connection теперь только жизненный цикл соединения; INIT/PING/keepalive
переклассифицированы в ETCP/SOCKET/KEEPALIVE/REALITY/ROUTING, удалены дубли
- settingsdialog: устранён дубль my_node_name в конфиге (двухпроходная запись + только при изменении)
- storagesettingspage: канонические ключи storage_total_size/storage_unit_size с суффиксом M/G
- audiodevicesettingspage: compressor_max_gain_db min 0→1
- etcp_connections: %s-баг в логе TCP link (addr → sockaddr_storage_to_str)
- docs/sample: [chatserver], актуализированы ключи хранилища
- Добавлен device_type (1 байт, CLIENT_TYPE_*) в INIT_REQUEST и INIT_RESPONSE
- Добавлен keepalive_interval (2 байта) в INIT_RESPONSE
- STCP handshake расширен с 43 до 46 байт (device_type+keepalive)
- negotiate_keepalive(): оба desktop/server → min, иначе (есть mobile) → max
- keepalive_interval вынесен в UTUN_INSTANCE для использования в handshake
- stcp_client_connect() принимает device_type и keepalive_interval
- peer_device_type/peer_keepalive_interval передаются через stcp_link в ETCP_LINK
- u_async.c: process immediate_queue BEFORE epoll_wait in uasync_poll
- stcp_link.c: defensive NULL etcp_conn/etcp_link in stcp_link_close
- utun_instance.c: move stcp_server_list_destroy_all to Phase J (before ETCP),
add deferred drain in both Phase J and L
- stcp.h/c: STCP_HS_ENC_CLIENT 6→38, STCP_HS_ENC_SERVER 7→39,
exchange ed25519_pubkey in both handshake directions
- etcp_connections.c: copy peer_ed25519 from STCP to ETCP_CONN in
etcp_link_enter_ready_tcp; guard link->etcp in tcp_link_close_cb
- chat_sync.c: fix lk->conn NULL dereference for TCP links
- test_stcp.c: update stcp_server_create/stcp_client_connect callsites
- tools/chat_tcp_test: change transport udp→tcp
- instance_lite: cleanup moved to uasync thread (self-detach), events on start/stop
- udp_log: cancel_timer before uasync_destroy, flush on stop, stopping flag
- jni_bridge: fixed UDP stop order (cancel_timer → destroy → flush)
- instance_lite: u_report_unfreed_blocks at all shutdown paths
- chat_event: CHAT_EVT_SERVICE_STARTED/STOPPED for GUI notifications
- AGENTS: logreceiver section
evgeny