refactor: Simplify node status JSON generation logging and output

lib/etcd.sh

@@ -151,16 +151,7 @@ generate_node_status_json() {
 
     # Debug logging for JSON generation
     log_info "=== Generate Node Status JSON Debug ==="
-    log_info "Input status='$status' role='$role'"
-    log_info "HOST='$HOST' PORT='${MYSQL_EXTERNAL_PORT}'"
-
-    # Ensure role has a valid value
-    role="${role:-slave}"
-    if [ -z "$role" ] || [ "$role" = "null" ]; then
-        log_warn "Empty or null role detected in generate_node_status_json, forcing to 'slave'"
-        role="slave"
-    fi
-
+    # Generate JSON first without any logging
     local json=$(jq -n \
         --arg status "$status" \
         --arg role "$role" \
@@ -177,10 +168,11 @@ generate_node_status_json() {
             last_seen: $last_seen,
             gtid_position: $gtid
         } * $extra')
+
+    # Debug logging after JSON generation, not captured in output
+    log_info "Generated node status JSON for $status role=$role: $json"
 
-    log_info "Generated JSON: $json"
-    log_info "========================="
-
+    # Only output the JSON
     echo "$json"
 }