Changes to GET `/api/v0/main-frontend/credit-registration-admin/account-linking` - The linking funnel, each course code's enrolment list, the send-status totals, the recent linking emails, who is waiting for a student number and the stale-address list.

removed the required property recent_linking_emails/items/emailed_to_masked from the response with the 200 status

added the optional property course_codes/items/last_mailing_fetch_started_at to the response with the 200 status

added the optional property course_codes/items/unlinked_enrolled_before_count to the response with the 200 status

added the required property course_codes/items/is_enrolment_list_empty to the response with the 200 status

added the required property course_codes/items/is_fetch_failing to the response with the 200 status

added the required property course_codes/items/pressed_waiting_count to the response with the 200 status

added the required property course_codes/items/unused_link_count to the response with the 200 status

added the required property engagement_counts to the response with the 200 status

added the required property pressers to the response with the 200 status

added the required property processing_phases to the response with the 200 status

added the required property recent_linking_emails/items/emailed_to to the response with the 200 status

added the required property recent_links to the response with the 200 status

added the required property send_status_totals/used to the response with the 200 status

added the required property unused_links to the response with the 200 status

added the required property waiting_students/items/engagement to the response with the 200 status

removed the required property modules from the response with the 200 status

removed the required property send_status_totals/queued from the response with the 200 status

added the required property course_codes to the response with the 200 status

added the required property recent_linking_emails to the response with the 200 status

added the required property send_status_totals/waiting_for_email_worker to the response with the 200 status

added the required property send_status_totals/waiting_for_link_emails to the response with the 200 status

added the required property waiting_students to the response with the 200 status

added the required property waiting_students_total to the response with the 200 status

added the optional property account_linking_since to the response with the 200 status

removed the required property funnel/fast_tracked_in_window from the response with the 200 status

removed the required property funnel/fast_tracked_last_run from the response with the 200 status

removed the required property realisations from the response with the 200 status

added the new study_registry enum value to the links_in_window_by_method/items/verified_via response property for the response status 200

added the new study_registry enum value to the links_total_by_method/items/verified_via response property for the response status 200

removed the email_match_fast_track enum value from the links_in_window_by_method/items/verified_via response property for the response status 200

removed the email_match_fast_track enum value from the links_total_by_method/items/verified_via response property for the response status 200

added the required property account_linking_enabled to the response with the 200 status

added the required property modules to the response with the 200 status

added the required property study_registry_conflicts to the response with the 200 status

removed the required property stale_addresses/items/addresses from the response with the 200 status

removed the required property stale_addresses/items/send_statuses from the response with the 200 status

added the required property stale_addresses/items/sends to the response with the 200 status

added the optional property realisations/items/fast_track_skipped_account_has_number_count to the response with the 200 status

added the optional property realisations/items/fast_track_skipped_name_mismatch_count to the response with the 200 status

added the optional property realisations/items/fast_track_skipped_no_account_count to the response with the 200 status

added the optional property realisations/items/fast_track_skipped_stale_verification_count to the response with the 200 status

added the optional property realisations/items/fast_track_skipped_unlinked_before_count to the response with the 200 status

added the optional property realisations/items/fast_track_skipped_unverified_count to the response with the 200 status

added the optional property realisations/items/fast_tracked_count to the response with the 200 status

added the required property funnel/fast_tracked_in_window to the response with the 200 status

added the required property funnel/fast_tracked_last_run to the response with the 200 status

endpoint added