ref #16538

Vercel AI integration was added to the nextjs-15 test application.

• sentry.server.config.ts was updated to include Sentry.vercelAIIntegration().
• ai and zod dependencies were added to package.json.

A new test page, app/ai-test/page.tsx, was created to demonstrate various AI SDK features, including automatic telemetry, explicit telemetry configuration, tool calls, and disabled telemetry. AI operations are wrapped in a Sentry span for tracing.

A corresponding Playwright test, tests/ai-test.test.ts, was implemented to verify:

• AI spans are created with expected operations (ai.pipeline.generate_text, gen_ai.generate_text, gen_ai.execute_tool).
• Span attributes, including model info, tokens, prompts, and responses, are correct.
• Input/output recording respects sendDefaultPii: true.
• Tool calls are properly traced.
• Disabled telemetry prevents span creation.

Finally, a fix was applied to packages/node/src/integrations/tracing/vercelai/instrumentation.ts. The generatePatch function was adjusted to correctly preserve the this context by changing it from an arrow function to a regular function, ensuring proper method binding for patched AI SDK methods.