ref: PR fixes

Author: mydea

packages/core/src/envelope.ts

@@ -63,7 +63,15 @@ export function createEventEnvelope(
   tunnel?: string,
 ): EventEnvelope {
   const sdkInfo = getSdkMetadataForEnvelopeHeader(metadata);
-  const eventType = event.type || 'event';
+
+  /*
+    Note: Due to TS, event.type may be `replay_event`, theoretically.
+    In practice, we never call `createEventEnvelope` with `replay_event` type,
+    and we'd have to adjut a looot of types to make this work properly.
+    We want to avoid casting this around, as that could lead to bugs (e.g. when we add another type)
+    So the safe choice is to really guard against the replay_event type here.
+  */
+  const eventType = event.type && event.type !== 'replay_event' ? event.type : 'event';
 
   enhanceEventWithSdkInfo(event, metadata && metadata.sdk);
 

packages/types/src/datacategory.ts

@@ -10,6 +10,8 @@ export type DataCategory =
   | 'error'
   // Transaction type event
   | 'transaction'
+  // Replay type event
+  | 'replay_event'
   // Events with `event_type` csp, hpkp, expectct, expectstaple
   | 'security'
   // Attachment bytes stored (unused for rate limiting