fix(webhooks): address remaining review follow-ups

Loosen Linear's replay window to better tolerate delayed retries and make Notion event mismatches return false consistently with the rest of the hardened providers.

Made-with: Cursor

Author: waleedlatif1

apps/sim/lib/webhooks/providers/linear.test.ts

@@ -41,7 +41,7 @@ describe('Linear webhook provider', () => {
     const rawBody = JSON.stringify({
       action: 'update',
       type: 'Issue',
-      webhookTimestamp: Date.now() - 120_000,
+      webhookTimestamp: Date.now() - 600_000,
     })
 
     const res = await linearHandler.verifyAuth!({

apps/sim/lib/webhooks/providers/linear.ts

@@ -42,7 +42,7 @@ function validateLinearSignature(secret: string, signature: string, body: string
   }
 }
 
-const LINEAR_WEBHOOK_TIMESTAMP_SKEW_MS = 60 * 1000
+const LINEAR_WEBHOOK_TIMESTAMP_SKEW_MS = 5 * 60 * 1000
 
 export const linearHandler: WebhookProviderHandler = {
   async verifyAuth({

apps/sim/lib/webhooks/providers/notion.ts

@@ -127,9 +127,7 @@ export const notionHandler: WebhookProviderHandler = {
             receivedEvent: eventType,
           }
         )
-        return NextResponse.json({
-          message: 'Event type does not match trigger configuration. Ignoring.',
-        })
+        return false
       }
     }