feat: add styleGuideIds to AI Translation requests

[GabrielBBaldez]

Adds support for the optional styleGuideIds field on the Apply Pre-Translation request (POST /projects/{projectId}/pre-translations), as requested in #372.

styleGuideIds is an array of Style Guide identifiers used during pre-translation. It is added to both request variants to keep them consistent:

• ApplyPreTranslationRequest (file-based)
• ApplyPreTranslationStringsBasedRequest (strings-based)

Tests

• Updated applyPreTranslationTest and applyPreTranslationStringsBasedTest (and their request fixtures) to set and send styleGuideIds.
• ./gradlew test passes.

Closes #372

[Copilot]

Pull request overview

This PR adds support for the optional styleGuideIds field to the Apply Pre-Translation request models so SDK consumers can pass Style Guide identifiers when calling POST /projects/{projectId}/pre-translations (per issue #372).

Changes:

• Added styleGuideIds: List<Long> to ApplyPreTranslationRequest (file-based).
• Added styleGuideIds: List<Long> to ApplyPreTranslationStringsBasedRequest (strings-based).
• Updated translation API tests and request JSON fixtures to include and send styleGuideIds.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/main/java/com/crowdin/client/translations/model/ApplyPreTranslationRequest.java	Adds styleGuideIds to the file-based pre-translation request model for JSON serialization.
src/main/java/com/crowdin/client/translations/model/ApplyPreTranslationStringsBasedRequest.java	Adds styleGuideIds to the strings-based pre-translation request model for JSON serialization.
src/test/java/com/crowdin/client/translations/TranslationsApiTest.java	Extends apply pre-translation tests to set styleGuideIds and validate request mocking.
src/test/resources/api/translations/preTranslationRequest.json	Updates the mocked request payload to include styleGuideIds.
src/test/resources/api/translations/preTranslationStringsBasedRequest.json	Updates the mocked request payload to include styleGuideIds.

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[andrii-bodnar]

@GabrielBBaldez, thanks for your contribution! There was an error in the original issue that pointed to the incorrect API endpoint. I updated the description. Could you please address this in the current PR?

[GabrielBBaldez]

Thanks @andrii-bodnar! I moved styleGuideIds to the AI Translation requests (AiTranslateRequest and AiFileTranslationAddRequest) per the updated issue description, and reverted the Pre-Translation changes. Tests and fixtures updated accordingly.

[andrii-bodnar]

@GabrielBBaldez thank you!