feat: Add mapping for optional committee mailing lists in WG output

Resolves #56

spec/openapi.yaml

@@ -250,6 +250,10 @@ components:
                $ref: "#/components/schemas/WorkingGroupResources"
             levels:
                $ref: "#/components/schemas/WorkingGroupLevels"
+            committee_mailing_lists:
+               oneOf:
+                 - $ref: "#/components/schemas/WorkingGroupMailingLists"
+                 - type: "null"
 
       WorkingGroupResources:
          type: object
@@ -351,6 +355,12 @@ components:
                type: string
                description: the label for the participation level
 
+      WorkingGroupMailingLists:
+        additionalProperties:
+          type: array
+          items:
+            type: string
+   
       WorkingGroupCommittee:
          type: object
          additionalProperties: false

src/main/java/org/eclipsefoundation/wg/models/WorkingGroup.java

@@ -10,6 +10,7 @@
 package org.eclipsefoundation.wg.models;
 
 import java.util.List;
+import java.util.Map;
 import java.util.Objects;
 import java.util.Optional;
 
@@ -19,7 +20,7 @@ import com.fasterxml.jackson.annotation.JsonProperty;
  * Entity representing a working group.
  */
 public record WorkingGroup(String alias, String title, String status, String logo, String description, String parentOrganization,
-    WorkingGroupResources resources, List<WorkingGroupParticipationLevel> levels) {
+    WorkingGroupResources resources, List<WorkingGroupParticipationLevel> levels, Map<String, List<String>> committeeMailingLists) {
 
   public WorkingGroup {
     Objects.requireNonNull(alias);

src/main/resources/working_groups.json

@@ -514,7 +514,10 @@
           "relation": "WGSAP",
           "description": "Guest Member"
         }
-      ]
+      ],
+      "committee_mailing_lists": {
+        "wsc": ["osgi-steering-committee@eclipse-foundation.org"]
+      }
     },
     "sparkplug": {
       "alias": "sparkplug",