available in alert templates triggered by Fourthwall donations.

### Event Tags
- `[[[event.from_name]]]` :: Name of the donor
- `[[[event.message]]]` :: Donor's message
- `[[[event.amount]]]` :: Donation amount (e.g. "10")
- `[[[event.currency]]]` :: Currency code (e.g. "USD")
- `[[[event.type]]]` :: Always "donation"
- `[[[event.source]]]` :: Always "Fourthwall" :: useful for reusing alert templates across donation services
- `[[[event.status]]]` :: Donation lifecycle state (e.g. "OPEN") :: Fourthwall-specific
- `[[[event.transaction_id]]]` :: Unique donation identifier (e.g. `don_...`)

example:
```
<div class="donation">
  [[[event.from_name]]] donated [[[event.amount]]] [[[event.currency]]]!
  [[[if:event.message]]]
    <p class="message">[[[event.message]]]</p>
  [[[endif]]]
</div>
```

note: Fourthwall is an Overlabels integration (not Twitch EventSub). Overlabels auto-registers the webhook on your Fourthwall shop on connect.