Implementation of jpa saving for traffic traces.

backend/codiki-domain/src/main/java/org/codiki/domain/traffic/model/TrafficTrace.java

@@ -7,6 +7,7 @@ public record TrafficTrace(
         UUID id,
         ZonedDateTime dateTime,
         TrafficEndpoint endpoint,
+        UUID userId,
         String correlationId
 ) {
     public static Builder aTrafficTrace() {
@@ -17,6 +18,7 @@ public record TrafficTrace(
         private UUID id;
         private ZonedDateTime dateTime;
         private TrafficEndpoint endpoint;
+        private UUID userId;
         private String correlationId;
 
         private Builder() {}
@@ -36,13 +38,18 @@ public record TrafficTrace(
             return this;
         }
 
+        public Builder withUserId(UUID userId) {
+            this.userId = userId;
+            return this;
+        }
+
         public Builder withCorrelationId(String correlationId) {
             this.correlationId = correlationId;
             return this;
         }
 
         public TrafficTrace build() {
-            return new TrafficTrace(id, dateTime, endpoint, correlationId);
+            return new TrafficTrace(id, dateTime, endpoint, userId, correlationId);
         }
     }
 }