refactor: demote high-frequency debug logs (raw_recv/dispatch→TRACE, normalizer→DEBUG), NTP drift→WARN

src/etcp_api.c

@@ -94,10 +94,10 @@ void etcp_int_recv(struct ll_queue* queue, void* arg) {
     struct UTUN_INSTANCE* inst = conn->instance;
     if (!inst) { queue_dgram_free(e); queue_entry_free(e); queue_resume_callback(queue); return; }
     if (inst->api_bindings.callbacks[id]) {
-        DEBUG_DEBUG(DEBUG_CATEGORY_DEBUG, "dispatch id=0x%02x conn=%s len=%zu", id, conn->log_name, e->len);
+        DEBUG_TRACE(DEBUG_CATEGORY_DEBUG, "dispatch id=0x%02x conn=%s len=%zu", id, conn->log_name, e->len);
         inst->api_bindings.callbacks[id](conn, e);
     } else if (inst->api_bindings.callbacks[0]) {
-        DEBUG_DEBUG(DEBUG_CATEGORY_DEBUG, "dispatch id=0x%02x (fallback) conn=%s len=%zu", id, conn->log_name, e->len);
+        DEBUG_TRACE(DEBUG_CATEGORY_DEBUG, "dispatch id=0x%02x (fallback) conn=%s len=%zu", id, conn->log_name, e->len);
         inst->api_bindings.callbacks[0](conn, e);
     } else { DEBUG_DEBUG(DEBUG_CATEGORY_DEBUG, "dispatch id=0x%02x NO CB conn=%s len=%zu — DROPPED", id, conn->log_name, e->len); queue_dgram_free(e); queue_entry_free(e); }
     queue_resume_callback(queue);

src/etcp_connections.c

@@ -1532,7 +1532,7 @@ void etcp_connections_read_callback_socket(socket_t sock, void* arg) {
         return;
     }
 
-    DEBUG_DEBUG(DEBUG_CATEGORY_DEBUG, "raw_recv on %s from=%s len=%zd", e_sock->name, sockaddr_storage_to_str(&addr).str, recv_len);
+    DEBUG_TRACE(DEBUG_CATEGORY_DEBUG, "raw_recv on %s from=%s len=%zd", e_sock->name, sockaddr_storage_to_str(&addr).str, recv_len);
 
     // DUMP: Show received packet content
     if (debug_should_output(DEBUG_LEVEL_DEBUG, DEBUG_CATEGORY_CRYPTO)) log_dump(DEBUG_LEVEL_DEBUG, DEBUG_CATEGORY_CRYPTO, "RECV in:", data, recv_len);

src/nat_detection.c

@@ -263,7 +263,7 @@ static void nat_detection_on_conn_down(struct ETCP_CONN* conn, void* arg) {
 static void nat_detection_new_conn_cbk(struct ETCP_CONN* conn, void* arg) {
     if (!conn || !conn->instance) return;
     struct NAT_DETECTION* nd = (struct NAT_DETECTION*)arg;
-    DEBUG_INFO(DEBUG_CATEGORY_BGP, "NAT detection set callbacks: %s", conn->log_name);
+    DEBUG_DEBUG(DEBUG_CATEGORY_NAT, "NAT detection set callbacks: %s", conn->log_name);
     etcp_conn_add_up_cbk(conn, nat_detection_on_conn_up, nd);
     etcp_conn_add_down_cbk(conn, nat_detection_on_conn_down, nd);
 }

src/ntp_node_time.c

@@ -93,7 +93,7 @@ static struct NTP_NODE_PEER* add_peer(struct NTP_NODE_TIME* np, uint64_t node_id
 static void check_drift(uint64_t node_id, int64_t offset_us) {
     int64_t abs_us = offset_us < 0 ? -offset_us : offset_us;
     if (abs_us > NTP_NODE_DRIFT_ERROR_US) {
-        DEBUG_ERROR(DEBUG_CATEGORY_GENERAL, "NTP_node: clock drift >10s with node %012llx: %lldus",
+        DEBUG_WARN(DEBUG_CATEGORY_GENERAL, "NTP_node: clock drift >10s with node %012llx: %lldus",
                     (unsigned long long)node_id, (long long)offset_us);
     } else if (abs_us > NTP_NODE_DRIFT_WARN_US) {
         DEBUG_WARN(DEBUG_CATEGORY_GENERAL, "NTP_node: clock drift >2s with node %012llx: %lldus",

src/pkt_normalizer.c

@@ -242,7 +242,7 @@ static void pn_send_to_etcp(struct PKTNORM* pn) {
     frag->ll.dgram_pool = pn->etcp->instance->data_pool;
     frag->ll.memlen     = pn->etcp->instance->data_pool->object_size;
     
-    DEBUG_INFO(DEBUG_CATEGORY_NORMALIZER, "pn->etcp: size=%d memlen=%d frag_size=%d", frag->ll.len, frag->ll.memlen, pn->frag_size);
+    DEBUG_DEBUG(DEBUG_CATEGORY_NORMALIZER, "pn->etcp: size=%d memlen=%d frag_size=%d", frag->ll.len, frag->ll.memlen, pn->frag_size);
     if (debug_should_output(DEBUG_LEVEL_DEBUG, DEBUG_CATEGORY_DUMP)) log_dump(DEBUG_LEVEL_DEBUG, DEBUG_CATEGORY_DUMP, "NORM->ETCP", pn->data, frag->ll.len);
 
     queue_data_put(pn->etcp->input_queue, (struct ll_entry*)frag);