fix(mailing-lists): align delivery_mode enum values with Groups.io API contract (#1087)

* fix(mailing-lists): align delivery_mode enum values with Groups.io API contract

MailingListMemberDeliveryMode values were 'normal'/'digest'/'none' but the
upstream Groups.io API expects 'email_delivery_single'/'email_delivery_digest'/
'email_delivery_none'. Also adds the three remaining API values (SPECIAL,
HTML_DIGEST, SUMMARY) for completeness.

Generated with [Claude Code](https://claude.ai/code)

Signed-off-by: Andres Tobon <andrest2455@gmail.com>

* fix(mailing-lists): update stale delivery_mode JSDoc in interface

The MailingListMember interface still documented delivery modes as
(normal, digest, none). Updated to reference the actual Groups.io API
values to match the corrected enum.

Generated with [Claude Code](https://claude.ai/code)

Signed-off-by: Andres Tobon <andrest2455@gmail.com>

---------

Signed-off-by: Andres Tobon <andrest2455@gmail.com>

Author: andrest50

packages/shared/src/enums/mailing-list.enum.ts

@@ -51,12 +51,15 @@ export enum MailingListMemberType {
 
 /**
  * Mailing list member delivery mode
- * @description How emails are delivered to this member
+ * @description How emails are delivered to this member (Groups.io API values)
  */
 export enum MailingListMemberDeliveryMode {
-  NORMAL = 'normal',
-  DIGEST = 'digest',
-  NONE = 'none',
+  NORMAL = 'email_delivery_single',
+  DIGEST = 'email_delivery_digest',
+  NONE = 'email_delivery_none',
+  SPECIAL = 'email_delivery_special',
+  HTML_DIGEST = 'email_delivery_html_digest',
+  SUMMARY = 'email_delivery_summary',
 }
 
 /**

packages/shared/src/interfaces/mailing-list.interface.ts

@@ -243,7 +243,7 @@ export interface MailingListMember {
   job_title?: string;
   /** How member was added (committee or direct) */
   member_type: MailingListMemberType;
-  /** Email delivery mode (normal, digest, none) */
+  /** Email delivery mode (Groups.io API values, e.g. email_delivery_single, email_delivery_digest, email_delivery_none) */
   delivery_mode: MailingListMemberDeliveryMode;
   /** Moderation status (none, moderator, owner) */
   mod_status: MailingListMemberModStatus;