fix lint, circular deps, size limit

Author: Lms24

packages/core/src/envelope.ts

@@ -20,7 +20,7 @@ import type { Event } from './types-hoist/event';
 import type { SdkInfo } from './types-hoist/sdkinfo';
 import type { SdkMetadata } from './types-hoist/sdkmetadata';
 import type { Session, SessionAggregates } from './types-hoist/session';
-import { SpanV2JSON } from './types-hoist/span';
+import type { SpanV2JSON } from './types-hoist/span';
 import { isV2BeforeSendSpanCallback } from './utils/beforeSendSpan';
 import { dsnToString } from './utils/dsn';
 import {

packages/core/src/utils/attributes.ts

@@ -1,8 +1,6 @@
-import { normalize } from '..';
 import type { SerializedAttribute } from '../types-hoist/attributes';
-import { Primitive } from '../types-hoist/misc';
-import type { SpanAttributes, SpanAttributeValue } from '../types-hoist/span';
-import { isPrimitive } from './is';
+import type { SpanAttributes } from '../types-hoist/span';
+import { normalize } from '../utils/normalize';
 
 /**
  * Converts an attribute value to a serialized attribute value object, containing