Include unique set of UID emails on key representations

api/mailinabox.yml

@@ -3185,6 +3185,10 @@ components:
           type: array
           items:
             type: string
+        ids_emails:
+          type: array
+          items:
+            $ref: '#/components/schemas/Email'
         master_fpr:
           type: string
         revoked:

management/pgp.py

@@ -18,11 +18,13 @@ def key_representation(key):
         "master_fpr": key.fpr,
         "revoked": key.revoked != 0,
         "ids": [],
+		"ids_emails": {},
         "subkeys": []
     }
 
     now = datetime.datetime.utcnow()
     key_rep["ids"] = [ id.uid for id in key.uids ]
+    key_rep["ids_emails"] = list({ id.email for id in key.uids }) # No duplicate email addresses in this list
     key_rep["subkeys"] = [{
         "master": skey.fpr == key.fpr,
         "sign": skey.can_sign == 1,