feat: add Style Guides API

[bulat3103]

No description provided.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.49%. Comparing base (dcdc704) to head (5784da7).

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #369      +/-   ##
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+ Coverage     93.40%   93.49%   +0.09%     
- Complexity      921      932      +11     
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  Files           203      205       +2     
  Lines          3317     3359      +42     
  Branches         70       71       +1     
============================================
+ Hits           3098     3140      +42     
  Misses          183      183              
  Partials         36       36              

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[Copilot]

Pull request overview

Adds a new Style Guides API module to the Java client, including models, API methods, and mock-based tests/resources.

Changes:

• Introduces StyleGuidesApi with CRUD + list operations for /style-guides.
• Adds StyleGuide domain model plus request/response wrapper models and list query params.
• Wires the new API into the root Client and adds tests + JSON fixtures.

Reviewed changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
src/main/java/com/crowdin/client/styleguide/StyleGuidesApi.java	Implements Style Guides endpoints (list/add/get/edit/delete).
src/main/java/com/crowdin/client/styleguide/model/StyleGuide.java	Adds Style Guide entity model.
src/main/java/com/crowdin/client/styleguide/model/AddStyleGuideRequest.java	Adds request model for creating style guides.
src/main/java/com/crowdin/client/styleguide/model/ListStyleGuidesParams.java	Adds list query params (pagination + order/user filters).
src/main/java/com/crowdin/client/styleguide/model/StyleGuideResponseObject.java	Adds response wrapper for single style guide.
src/main/java/com/crowdin/client/styleguide/model/StyleGuideResponseList.java	Adds response wrapper + conversion for list responses.
src/main/java/com/crowdin/client/Client.java	Exposes StyleGuidesApi from the root client.
src/test/java/com/crowdin/client/styleguide/StyleGuidesApiTest.java	Adds mock-based unit tests for the new API.
src/test/resources/api/styleguide/styleGuide.json	Adds mocked single-item API response fixture.
src/test/resources/api/styleguide/listStyleGuides.json	Adds mocked list API response fixture.
src/test/resources/api/styleguide/addStyleGuideRequest.json	Adds mocked create request fixture.
src/test/resources/api/styleguide/editStyleGuide.json	Adds mocked patch request fixture.

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[bulat3103]

Fixed all copilot issues