e0496fdba2
Wire up the existing POST /alerts/rules/{id}/render-preview endpoint
so rule authors can preview their Mustache-templated notification
before saving. Available in edit mode only (new rules require save
first — endpoint is id-bound). Matches the njams gap: their rules
builder ships no in-builder preview and operators compensate with
trial-and-error save/retry.
Implementation notes:
- ReviewStep gains an optional `ruleId` prop; when present, a
"Preview notification" button calls `useRenderPreview` (the
existing TanStack mutation in api/queries/alertRules.ts) and
renders title + message in a titled, read-only pane styled like
a notification card.
- Errors surface as a DS Alert (variant=error) beneath the button.
- `RuleEditorWizard` passes `ruleId={id}` through — mirrors the
existing TriggerStep / NotifyStep wiring.
- No stateless (/render-preview without id) variant exists on the
backend, so for new rules the button is simply omitted.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>