feat: Add custom license expiration v2 fields.

[macdiesel]

http://localhost:18170/api/v1/learner-licenses/?enterprise_customer_uuid=7ad8cdb9-352c-4b71-bcf1-3015103cca1f

{
    "next": null,
    "previous": null,
    "count": 1,
    "num_pages": 1,
    "current_page": 1,
    "start": 0,
    "results": [
        {
            "uuid": "095392a2-5748-45ad-aa2a-7d6bcd75ba67",
            "status": "activated",
            "user_email": "[email protected]",
            "activation_date": "2024-10-16T21:50:19.231208Z",
            "last_remind_date": "2024-10-10T14:28:30Z",
            "subscription_plan_uuid": "7dce00ba-2de1-48b3-8aed-b514d7e1dbab",
            "revoked_date": null,
            "activation_key": "a428db25-cb52-4955-bc77-973be9903db3",
            "customer_agreement": {
                "uuid": "9571c2d9-d562-49e2-8f2e-2eaa92f07a84",
                "enterprise_customer_uuid": "7ad8cdb9-352c-4b71-bcf1-3015103cca1f",
                "enterprise_customer_slug": "test-enterprise",
                "default_enterprise_catalog_uuid": "f09ff39b-f456-4a03-b53b-44cd70f52108",
                "disable_expiration_notifications": false,
                "net_days_until_expiration": 339,
                "subscription_for_auto_applied_licenses": "7dce00ba-2de1-48b3-8aed-b514d7e1dbab",
                "available_subscription_catalogs": [
                    "f09ff39b-f456-4a03-b53b-44cd70f52108"
                ],
                "enable_auto_applied_subscriptions_with_universal_link": true,
                "has_custom_license_expiration_messaging_v2": true,
                "modal_header_text_v2": "HELLO WORLD",
                "expired_subscription_modal_messaging_v2": "Testing",
                "button_label_in_modal_v2": "Continue learning",
                "url_for_button_in_modal_v2": "https://edx.org"
            },
            "subscription_plan": {
                "title": "Seed Generated Plan from <CustomerAgreement: 'test-enterprise'> 2024-10-05 16:08:01.428564+00:00",
                "uuid": "7dce00ba-2de1-48b3-8aed-b514d7e1dbab",
                "start_date": "2024-10-05T16:08:01Z",
                "expiration_date": "2025-10-05T16:08:01Z",
                "enterprise_customer_uuid": "7ad8cdb9-352c-4b71-bcf1-3015103cca1f",
                "enterprise_catalog_uuid": "f09ff39b-f456-4a03-b53b-44cd70f52108",
                "is_active": true,
                "is_current": true,
                "is_revocation_cap_enabled": false,
                "days_until_expiration": 339,
                "days_until_expiration_including_renewals": 339,
                "is_locked_for_renewal_processing": false,
                "should_auto_apply_licenses": true,
                "created": "2024-10-05T16:08:01.428952Z"
            }
        }
    ],
    "customer_agreement": {
        "uuid": "9571c2d9-d562-49e2-8f2e-2eaa92f07a84",
        "enterprise_customer_uuid": "7ad8cdb9-352c-4b71-bcf1-3015103cca1f",
        "enterprise_customer_slug": "test-enterprise",
        "default_enterprise_catalog_uuid": "f09ff39b-f456-4a03-b53b-44cd70f52108",
        "disable_expiration_notifications": false,
        "net_days_until_expiration": 339,
        "subscription_for_auto_applied_licenses": "7dce00ba-2de1-48b3-8aed-b514d7e1dbab",
        "available_subscription_catalogs": [
            "f09ff39b-f456-4a03-b53b-44cd70f52108"
        ],
        "enable_auto_applied_subscriptions_with_universal_link": true,
        "has_custom_license_expiration_messaging_v2": true,
        "modal_header_text_v2": "HELLO WORLD",
        "expired_subscription_modal_messaging_v2": "Testing",
        "button_label_in_modal_v2": "Continue learning",
        "url_for_button_in_modal_v2": "https://edx.org"
    }
}