Update a collection template

curl -X POST 'https://api.expiryedge.com/v1/updateCollectionTemplate?id=tpl_W9onboard' \
  -H "Authorization: Bearer $EXPIRYEDGE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "name": "Client onboarding 2026",
  "description": "Updated for the 2026 policy year."
}'

{
  "message": "Template updated",
  "template": {
    "id": "tpl_W9onboard",
    "organization_id": "org_northwind",
    "name": "Client onboarding 2026",
    "description": "Documents we need before the first engagement.",
    "pages": [
      {
        "id": "p_company",
        "title": "Company details",
        "order": 0,
        "description_html": "<p>Tell us about your practice.</p>",
        "sections": [
          {
            "id": "s_basics",
            "title": "Basics",
            "order": 0,
            "description_html": "",
            "fields": [
              {
                "id": "fld_company_name",
                "type": "short_text",
                "label": "Legal company name",
                "required": true,
                "help_text": ""
              },
              {
                "id": "fld_entity",
                "type": "dropdown",
                "label": "Entity type",
                "required": true,
                "help_text": "",
                "options": [
                  "LLC",
                  "Corporation",
                  "Sole proprietor"
                ]
              },
              {
                "id": "fld_insurance",
                "type": "file_upload",
                "label": "Liability insurance certificate",
                "required": true,
                "help_text": "PDF or image, current policy year.",
                "allowed_types": [
                  "pdf",
                  "jpg",
                  "png"
                ],
                "max_size_bytes": 26214400,
                "reference_file": {
                  "storage_path": "organizations/org_northwind/collection-templates/tpl_W9onboard/fields/fld_insurance/reference-1b2c-sample.pdf",
                  "original_filename": "sample-certificate.pdf",
                  "content_type": "application/pdf",
                  "size_bytes": 120331
                }
              }
            ]
          }
        ]
      }
    ],
    "intro_email": {
      "body_html": "<p>Hi, please upload the documents below by Friday.</p>"
    },
    "schema_version": 2,
    "status": "active",
    "created_by": "u_71bXq",
    "created_by_name": "Priya Shah",
    "created_at": "2026-09-27T14:05:00.000Z",
    "updated_at": "2026-09-27T14:05:00.000Z"
  }
}