- cs_handle_init_resp: change silent reject len<37→len<5 (actual payload
sent is 6 bytes, plen=5 after stripping type byte).
Support short format (synced, peer_count+sparse_count) and long format
(divergence, with test_pos+peer_ch). Add INFO logs at each decision.
(fixes sync never starting after invite join — RECV INIT_RESP len=5
was silently rejected)
- All 12 silent return branches in handlers: add DEBUG_WARN with
handler name, peer, ch_id, and reason (makes malformed packets
visible in logs)
- Key sync flow INFO logs:
cs_handle_init_sync: peer_count, my_count
cs_handle_send_data: records sent/received count
cs_on_conn_up: invite vs sync path
chat_core_insert_record: successful insert
Evgeny
8c41b44718