feat(attributes): Add legacy Vercel AI span attributes (deprecated)

[JPeer264]

Adds the twelve ai.* and gen_ai.* attributes that the JavaScript SDK stopped emitting in v11, when the Vercel AI OpenTelemetry span processor was removed.

Six map onto a gen_ai.* replacement and join its alias group: ai.model.id, ai.prompt, ai.response.id, ai.response.model, ai.usage.tokens and ai.prompt.tools. The remaining six have no equivalent in the conventions and carry a reason only.

ai.prompt.tools gets a replacement but no alias here, so that the whole gen_ai.tool.definitions alias group can be completed in one place, in the last PR of this stack.

Deprecated by getsentry/sentry-javascript#23384

[github-actions]

Semver Impact of This PR

🟡 Minor (new features)

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New Features ✨

Attributes

• Add legacy Vercel AI span attributes (deprecated) by JPeer264 in #583

• Add legacy AMQP and Redis span attributes (deprecated) by JPeer264 in #581
• Add HTTP body size and status text attributes by msonnb in #574
• Add graphql.processing.type by andreiborza in #572

Other

• (span-names) Add url.domainrule for http.client spans by Lms24 in #575

Bug Fixes 🐛

Names

• Add gen_ai.function_id and gen_ai.pipeline.name to agent span name templates by RulaKhaled in #593
• Add missing gen_ai ops to span name rules by Lms24 in #579
• Include tool name in gen_ai.execute_tool span names by Lms24 in #580
• Correct graphql span name examples by andreiborza in #573

Internal Changes 🔧

• (attributes) Add search alias for segment name by nsdeschenes in #577
• (search-metadata) Add visibility field by nsdeschenes in #597

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[sentry]

Bug: The attribute ai.prompt.tools (a string[]) is configured to backfill to gen_ai.tool.definitions (a string), but their types are incompatible for a direct copy, which will cause ingestion failures.
_{Severity: HIGH}

Suggested Fix

To resolve the type mismatch, either change _status from backfill to null and add a reason documenting the incompatibility, or change _status to transform and define a transformation to correctly convert the string[] value into a string.

Prompt for AI Agent

Review the code at the location below. A potential bug has been identified by an AI
agent. Verify if this is a real issue. If it is, propose a fix; if not, explain why it's
not valid.

Location: model/attributes/ai/ai__prompt__tools.json#L1-L23

Potential issue: The configuration for `ai.prompt.tools` specifies `_status: "backfill"`
to migrate its value to the replacement attribute `gen_ai.tool.definitions`. However,
the source attribute is a `string[]` (array of strings) while the destination is a
`string`. The backfill process performs a direct value copy, which will fail due to this
type mismatch. This will cause the ingestion pipeline to fail or lead to data corruption
when processing spans containing the `ai.prompt.tools` attribute. Existing patterns in
the codebase for such type mismatches use `_status: null` with a reason or `_status:
"transform"` to handle the conversion.