Add ability to define content for confirmation instructions

Problem

The confirmation instruction emails sent to new users during registration used fixed templates that organisations could not customise. This was inconsistent with other automated emails (such as invitations) which are already editable, and prevented organisations from adding their own branding, messaging, or role-specific instructions.

How it works

Organisations can now customise two confirmation-related emails for each user role (Admin, Applicant, Assessor, Verifier):

1. Confirmation Instructions -- sent immediately after signup, asking the user to confirm their email address.

2. Confirmation Reminder -- sent one day before the confirmation window expires, warning the user to confirm before their account is locked.

Configuration

Navigate to Settings > Emails. The confirmation emails appear under the "Registrations" section for each user type. Click Edit to customise the subject line and body content.

Available personalisations

Emails support the same personalisation variable system as other automated emails. Common variables include:

• [[confirmation_link]] -- clickable link to confirm the account

• [[confirmation_url]] -- plain URL for pasting into a browser

• [[time_to_confirm]] -- human-readable time window (initial email only)

• [[confirmed_time_ago]] -- time since the original email was sent (reminder only)

• Recipient name variables specific to each user type (e.g. [[applicant_first_name]], [[admin_name]])

Defaults

All emails ship with sensible default content. Organisations can restore defaults at any time after customising.