feat(node): Instrument stream responses for openai

[RulaKhaled]

This adds support for OpenAI streaming responses in the Node.js SDK

What's new

• Streaming Chat Completions: Support for stream: true in chat.completions.create()
• Streaming Responses API: Support for streaming in the new OpenAI Responses API

// Streaming chat completions - automatically instrumented
const stream = await openai.chat.completions.create({
  model: 'gpt-4',
  messages: [...],
  stream: true
});

// Streaming responses API - automatically instrumented  
const responseStream = await openai.responses.create({
  model: 'gpt-4',
  input: 'Hello',
  stream: true
});

closes: #17037

[github-actions]

size-limit report 📦

Path	Size	% Change	Change
@sentry/browser	23.76 kB	-	-
@sentry/browser - with treeshaking flags	22.35 kB	-	-
@sentry/browser (incl. Tracing)	39.41 kB	-	-
@sentry/browser (incl. Tracing, Replay)	77.52 kB	-	-
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags	67.39 kB	-	-
@sentry/browser (incl. Tracing, Replay with Canvas)	82.23 kB	-	-
@sentry/browser (incl. Tracing, Replay, Feedback)	94.35 kB	-	-
@sentry/browser (incl. Feedback)	40.45 kB	-	-
@sentry/browser (incl. sendFeedback)	28.44 kB	-	-
@sentry/browser (incl. FeedbackAsync)	33.34 kB	-	-
@sentry/react	25.5 kB	-	-
@sentry/react (incl. Tracing)	41.38 kB	-	-
@sentry/vue	28.2 kB	-	-
@sentry/vue (incl. Tracing)	41.21 kB	-	-
@sentry/svelte	23.79 kB	-	-
CDN Bundle	25.28 kB	-	-
CDN Bundle (incl. Tracing)	39.28 kB	-	-
CDN Bundle (incl. Tracing, Replay)	75.39 kB	-	-
CDN Bundle (incl. Tracing, Replay, Feedback)	80.82 kB	-	-
CDN Bundle - uncompressed	73.86 kB	-	-
CDN Bundle (incl. Tracing) - uncompressed	116.29 kB	-	-
CDN Bundle (incl. Tracing, Replay) - uncompressed	230.53 kB	-	-
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed	243.35 kB	-	-
@sentry/nextjs (client)	43.44 kB	-	-
@sentry/sveltekit (client)	39.84 kB	-	-
@sentry/node-core	47.48 kB	+0.01%	+1 B 🔺
@sentry/node	144.89 kB	+0.54%	+765 B 🔺
@sentry/node - without tracing	91.58 kB	-	-
@sentry/aws-serverless	103.03 kB	-0.01%	-1 B 🔽

View base workflow run

[AbhiPrasad]

I'd like us to add some more jsdoc explanations to packages/core/src/utils/openai/streaming.ts