fix(bun): Add conversationIdIntegration to the default integrations

`@sentry/bun` builds its own list of default integrations, and it did
not include `conversationIdIntegration`, which every other server SDK
installs. So on Bun, a conversation id set on the scope never reached
the gen_ai spans.

This was the only reason the bundled Bun runs of the OpenAI and Vercel
AI (v4) suites failed, so both run again.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Author: JPeer264

dev-packages/bun-integration-tests/node-suites/excludes.ts

@@ -258,10 +258,8 @@ const BUN_BUILD_NOT_TRIAGED = [
   'suites/tracing/mongoose-v9/test.ts',
   'suites/tracing/mongoose/test.ts',
   'suites/tracing/mysql/test.ts',
-  'suites/tracing/openai/test.ts',
   'suites/tracing/prisma-orm-v8/test.ts',
   'suites/tracing/together-ai/test.ts',
-  'suites/tracing/vercelai/test.ts',
   'suites/tracing/vercelai/v6_v7/test.ts',
 ];
 

packages/bun/src/sdk.ts

@@ -2,6 +2,7 @@ import * as os from 'node:os';
 import type { Integration, Options } from '@sentry/core';
 import {
   applySdkMetadata,
+  conversationIdIntegration,
   dedupeIntegration,
   eventFiltersIntegration,
   functionToStringIntegration,
@@ -51,6 +52,7 @@ export function getDefaultIntegrationsWithoutPerformance(): Integration[] {
     linkedErrorsIntegration(),
     dedupeIntegration(),
     requestDataIntegration(),
+    conversationIdIntegration(),
     // Native Wrappers
     consoleIntegration(),
     httpIntegration(),

packages/bun/test/init.test.ts

@@ -1,3 +1,4 @@
+import { GEN_AI_CONVERSATION_ID } from '@sentry/conventions/attributes';
 import { type Integration } from '@sentry/core';
 import * as sentryServerUtils from '@sentry/server-utils';
 import type { Mock } from 'bun:test';
@@ -8,6 +9,9 @@ import {
   getDefaultIntegrationsWithoutPerformance,
   init,
   initWithoutDefaultIntegrations,
+  spanToJSON,
+  startSpan,
+  withScope,
 } from '../src';
 
 const PUBLIC_DSN = 'https://username@domain/123';
@@ -127,6 +131,19 @@ describe('init()', () => {
       expect(integrations?.map(({ name }) => name)).toContain('Some mock integration 4.1');
       expect(integrations?.map(({ name }) => name)).toContain('Some mock integration 4.3');
     });
+
+    it('adds the conversation id of the scope to gen_ai spans', () => {
+      // The default integrations alone must do it, without the tracing integrations.
+      mockGetTracingIntegrations.mockImplementation(() => []);
+      init({ dsn: PUBLIC_DSN, tracesSampleRate: 1 });
+
+      withScope(scope => {
+        scope.setConversationId('conversation-1');
+        startSpan({ name: 'chat', op: 'gen_ai.chat' }, span => {
+          expect(spanToJSON(span).attributes[GEN_AI_CONVERSATION_ID]).toBe('conversation-1');
+        });
+      });
+    });
   });
 
   describe('runtime', () => {