Context

Organization invitation emails are now sent from cloud-api through Resend and invitation rows track delivery metadata (email_status, email_sent_at, email_last_error, email_message_id). We need admin-facing APIs so operators can oversee delivery health and manually recover failed/skipped emails.

Goals

• Give platform admins visibility into organization invitation email delivery status.
• Allow admins to resend invitation emails when delivery failed, was skipped, or needs manual retry.
• Preserve auditability and avoid exposing invitation tokens unnecessarily.

Proposed API work

• Add admin-only endpoints under the existing admin route namespace to list invitation email deliveries with filters for organization, recipient email, status, date range, and invitation status.
• Include response fields for organization id/name, invitation id, recipient email, role, invitation status, email status, sent timestamp, last error, Resend email id, inviter id/email, created/expires/responded timestamps.
• Add admin-only resend endpoint for a single invitation, reusing the same Resend sender/template path as normal invitation creation.
• Add optional bulk resend endpoint for filtered failed/skipped/not_attempted pending invitations, with clear per-invitation results.
• Record each resend attempt back onto organization_invitations delivery columns and emit structured logs/metrics.
• Enforce safe resend rules: invitation must exist, still be pending, and not expired unless a separate reissue flow is implemented.

Acceptance criteria

• Platform admin auth is required for all endpoints.
• Listing supports pagination and deterministic ordering.
• Resend returns per-invitation success/failure with sanitized errors.
• Failed resend does not delete or invalidate existing invitations.
• Tests cover permissions, listing filters, single resend success/failure, expired/non-pending resend rejection, and delivery metadata updates.

Cross references

• Implementation PR: Add Resend organization invitation email notifications #579
• Admin UI issue: https://github.com/nearai/nearai-cloud-admin-ui/issues/34