feat(attributes): Add runtime context attributes

[markushi]

Summary

• Adds top-level runtime.* attributes that map to the existing Sentry runtime context fields
• New attributes: runtime.name, runtime.version, runtime.build, runtime.raw_description
• The existing runtime context appears to be deprecated by the OTel process.runtime.* attributes, so runtime.name, runtime.version, and runtime.raw_description are marked as deprecated with _status: backfill, pointing to process.runtime.name, process.runtime.version, and process.runtime.description respectively
• Cross-aliases are added on both sides per the deprecation policy
• runtime.build has no OTel equivalent and remains non-deprecated

Test plan

• yarn test passes (5290 JS + 3 Python tests)
• yarn run generate ran successfully
• Verify generated docs render correctly

🤖 Generated with Claude Code

[github-actions]

Semver Impact of This PR

🟡 Minor (new features)

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New Features ✨

Attributes

• Add runtime context attributes by markushi in #383

• Add calculated performance scores by loewenheim in #355
• Add rpc.response.status_code attribute by alexander-alderman-webb in #352
• Add rpc.method attribute by alexander-alderman-webb in #351
• Add app vitals start attributes by buenaflor in #353
• Add process.runtime.engine.* attributes by chargome in #347

Bug Fixes 🐛

Attributes

• Increase some PII values by loewenheim in #373
• Change several deprecation statuses to normalize to align with ingestion paths by constantinius in #350

Other

• (create) Replace angle brackets in file names by loewenheim in #356

Internal Changes 🔧

• (gh) Remove myself from CODEOWNERS by lcian in #354
• Bump vulnerable pytest by alexander-alderman-webb in #360
• Bump vulnerable js packages by chargome in #359

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[buenaflor]

are these the runtime attributes that we send in mobile today?

[buenaflor]

I think we should add these since we already send them but deprecate them in favour of something else

it'd confusing looking at this + process.runtime

additionally I saw process.runtime.name is supposed to be the same as this runtime.name

https://getsentry.github.io/sentry-conventions/attributes/process/#process-runtime-name

[markushi]

Yeah it's confusing, as far as I can see runtime exists for a while now (e.g. sentry-java backend or cocoa).

process.runtime looks like some otel based attributes, happy to use those instead, but I guess it would require some migration path right?

When in doubt, prefer OTel alignment. Sentry conventions should only extend OTel, not diverge from it.

[buenaflor]

I guess it would require some migration path right?

yea, though migrations like backfilling and coalescing are currently limited to EAP afaict

we don't need to migrate SDKs now but I guess it does make sense to at least document it as a deprecated attribute

e.g runtime.name deprecated in favour of process.runtime.name