LAB-1874 - Fix OpenAPI spec for Kiota limitation.

[ferrywlto]

This pull request refactors the OpenAPI schema definitions in specs/Data-Gateway.json to improve consistency and reusability of nullable UUID and date-time fields. Instead of repeating type definitions for each property, the schema now references shared components for nullable UUIDs and nullable date-time strings. This change reduces duplication and makes the schema easier to maintain.

Schema refactoring and standardization:

• Introduced and updated the NullableUuid and NullableDateTimeStringType schema components to use a more concise type: ["string", "null"] format, and added relevant constraints and descriptions. [1] [2]
• Updated all properties previously using inline nullable UUID or date-time definitions (such as breakoutId, expiryDate, replacementDate, discoveryDate, accountId, createdDate, and modifiedDate) to reference the new shared schema components, reducing redundancy across the spec. [1] [2] [3] [4] [5] [6]

[Copilot]

Pull request overview

Refactors the Data Gateway OpenAPI spec to reduce duplication and improve Kiota compatibility by standardizing nullable UUID and date-time fields via shared component schemas.

Changes:

• Updated NullableUuid and NullableDateTimeStringType to use type: ["string", "null"] (instead of oneOf + null).
• Replaced several inline nullable UUID/date-time property schemas with $ref references to the shared components.
• Minor normalization in the Uuid schema field ordering (no functional change intended).

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[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.

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