feat(core): Add missing openai tool calls attributes

[RulaKhaled]

This PR adds missing tool call attributes, we addgen_ai.response.tool_calls attribute for OpenAI Chat Completion and Responses API, supporting both streaming and non-streaming requests.

Core changes:

1. Request Side - Capture available tools:

   • Extract tools + web_search_options from request params
   • Set gen_ai.request.available_tools attribute

2. Response Side - Capture actual tool calls:

   • Chat Completion: Extract from response.choices[].message.tool_calls
   • Responses API: Extract from response.output[] (filter type === 'function_call')
   • Set gen_ai.response.tool_calls attribute for both

3. Streaming Support (in streaming.ts):

   • Accumulation of tool calls during streaming
   • Respects recordOutputs privacy setting

[linear]

JS-789 Add missing span attributes for openai instrumentation e.g available tools

[github-actions]

size-limit report 📦

Path	Size	% Change	Change
@sentry/browser	23.77 kB	-	-
@sentry/browser - with treeshaking flags	22.35 kB	-	-
@sentry/browser (incl. Tracing)	39.41 kB	-	-
@sentry/browser (incl. Tracing, Replay)	77.53 kB	-	-
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags	67.4 kB	-	-
@sentry/browser (incl. Tracing, Replay with Canvas)	82.24 kB	-	-
@sentry/browser (incl. Tracing, Replay, Feedback)	94.37 kB	-	-
@sentry/browser (incl. Feedback)	40.45 kB	-	-
@sentry/browser (incl. sendFeedback)	28.45 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)	41.22 kB	-	-
@sentry/svelte	23.79 kB	-	-
CDN Bundle	25.28 kB	-	-
CDN Bundle (incl. Tracing)	39.29 kB	-	-
CDN Bundle (incl. Tracing, Replay)	75.41 kB	-	-
CDN Bundle (incl. Tracing, Replay, Feedback)	80.84 kB	-	-
CDN Bundle - uncompressed	73.86 kB	-	-
CDN Bundle (incl. Tracing) - uncompressed	116.3 kB	-	-
CDN Bundle (incl. Tracing, Replay) - uncompressed	230.61 kB	-	-
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed	243.42 kB	-	-
@sentry/nextjs (client)	43.44 kB	-	-
@sentry/sveltekit (client)	39.84 kB	-	-
@sentry/node-core	47.53 kB	-	-
@sentry/node	146.19 kB	+0.24%	+338 B 🔺
@sentry/node - without tracing	91.63 kB	-0.01%	-1 B 🔽
@sentry/aws-serverless	103.08 kB	+0.01%	+1 B 🔺

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