ref(schema): Unify model schema definitions

[Lms24]

Make Zod 4 the single hand-written definition for all six model document formats. TypeScript input types are now inferred from those schemas, while the existing Draft 7 files remain committed, deterministically generated compatibility artifacts.

This removes drift between JSON Schema, Astro's embedded Zod definitions, and scripts/types.ts. Code generation and maintenance scripts now validate JSON before use and report actionable paths, and Astro consumes the same canonical schemas. Generated schemas preserve legacy anchors and authoring descriptions for existing external consumers.

We considered keeping JSON Schema canonical and generating Zod, but translating the existing conditional rules into useful Astro schemas would add another fragile generation layer. A staged migration was also considered; landing the consumers and parity checks together prevents an intermediate period with competing sources of truth.

The generated attribute schema is structurally larger because type/example relationships are represented as explicit unions. Reviewers should pay particular attention to the generated-schema compatibility wrappers and the explicit Zod/AJV semantic-oracle tests.

Fixes #512

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Semver Impact of This PR

🟢 Patch (bug fixes)

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New Features ✨

Attributes

• Add aws.request.url (deprecated) in favor of url.full by sentrivana in #488
• Add subprocess.pid (deprecated) in favor of process.pid by sentrivana in #487
• Add litestar.middleware_name (deprecated) in favor of middleware.name by sentrivana in #486
• Add starlette.middleware_name (deprecated) in favor of middleware.name by sentrivana in #485
• Add redis.key (deprecated) in favor of db.redis.key by sentrivana in #484
• Add db.mongodb.collection (deprecated) in favor of db.collection.name by sentrivana in #483
• Add Kafka messaging attributes by chargome in #474
• Deprecate rpc.grpc.status_code in favor of rpc.response.status_code by lucas-zimerman in #494
• Add deprecated messaging.destination_kind by andreiborza in #509
• Add sentry.segment.name.source attribute by Lms24 in #466
• Add attribute transformations by constantinius in #465
• Add stable app vitals attributes by buenaflor in #493
• Deprecate sentry.frames.* attributes by buenaflor in #500
• Add missing AI legacy aliases from Relay SpanData by vgrozdanic in #498

Other

• (conventions) Support multiple examples by Lms24 in #505
• (descriptions) Add http.route description template for http.server span description inference by Lms24 in #518

Internal Changes 🔧

Attribute

• Add more examples for valid sentry.kind values by Lms24 in #517
• Improve db.statement example and add deprecation reason by Lms24 in #501

Attributes

• Improve description of sentry.segment.name.source by Lms24 in #511
• Deprecate sentry.span.source and change backfill status of sentry.source by Lms24 in #510

Deps

• Bump fast-uri from 3.1.2 to 3.1.4 by dependabot in #526
• Bump svgo from 4.0.1 to 4.0.2 by dependabot in #524
• Bump js-yaml from 4.2.0 to 4.3.0 by dependabot in #516
• Bump astro from 6.4.7 to 7.1.0 in /docs by dependabot in #514

Other

• (attrs) Backport attributes and normalizations from Relay by Dav1dde in #497
• (codeowners) Assign telemetry-experience to gen_ai/ai attributes by vgrozdanic in #506
• (deps-dev) Bump tar from 7.5.16 to 7.5.19 by dependabot in #515
• (release) Show version in workflow run title by constantinius in #504

• (schema) Unify model schema definitions by Lms24 in #527

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