improvement(webhooks): overlap the webhook path lookup with body parsing

findAllWebhooksForPath depends only on the request path, so the ingest
route starts it before reading the body stream and awaits it after the
challenge short-circuit — one round trip off the pre-ack path. A challenge
response abandons a read-only query.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: icecrasher321

apps/sim/app/api/webhooks/trigger/[path]/route.ts

@@ -141,6 +141,13 @@ async function handleWebhookDelivery(
     ? Number(slackRequestTimestamp) * 1000
     : undefined
 
+  /**
+   * Depends only on the path, so the read-only lookup overlaps the body stream
+   * read below; a challenge short-circuit simply abandons the result.
+   */
+  const webhookLookupPromise = findAllWebhooksForPath({ requestId, path })
+  webhookLookupPromise.catch(() => {})
+
   const parseResult = await parseWebhookBody(request, requestId)
 
   // Check if parseWebhookBody returned an error response
@@ -159,8 +166,8 @@ async function handleWebhookDelivery(
     return challengeResponse
   }
 
-  // Find all webhooks for this path (multiple webhooks in one workflow may share a path)
-  const allWebhooksForPath = await findAllWebhooksForPath({ requestId, path })
+  // Multiple webhooks in one workflow may share a path
+  const allWebhooksForPath = await webhookLookupPromise
 
   const pathWebhooks = allWebhooksForPath.filter(({ webhook: foundWebhook }) =>
     acceptsPathWebhookDelivery(foundWebhook.provider)