List email templates

curl 'https://api.expiryedge.com/v1/emailTemplates' \
  -H "Authorization: Bearer $EXPIRYEDGE_API_KEY"

{
  "templates": [
    {
      "id": "et_Qw81zd",
      "name": "Friendly renewal reminder",
      "subject": "Reminder: {{expiry.name}} {{expiry.status}}",
      "body_html": "<p>Hi {{contact.firstName}},</p><p>{{expiry.name}} {{expiry.status}}. <a href=\"{{expiry.url}}\">View details</a>.</p>",
      "type": "expiry_reminder",
      "track_opens": true,
      "track_clicks": false,
      "created_by": "u_71bXq",
      "updated_by": "u_71bXq",
      "created_at": "2026-09-27T14:05:00.000Z",
      "updated_at": "2026-09-27T14:05:00.000Z"
    }
  ],
  "selected": {
    "expiry_reminder": "et_Qw81zd"
  },
  "entitlement": {
    "allowed": true,
    "planName": "ProEssentials",
    "expiresAt": 1790518000000
  },
  "usage": {
    "et_Qw81zd": 2
  }
}