[diemol]

Description

StorageEndpoint.postMultipartResponse builds its own request and did not set the User-Agent header. All other requests get it from AbstractEndpoint.createRequest. This PR adds the header to the upload request too.

Motivation and Context

Every HTTP request should send User-Agent: SauceREST/<version>. File uploads to app storage were the only ones missing it.

How Has This Been Tested?

Added UserAgentTest. It uses an OkHttp interceptor to capture the outgoing request and checks the User-Agent header for a regular request (getFiles) and for an upload (uploadFile). The upload test fails without the fix and passes with it.

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Refactoring (change which improves current code base; please describe the change)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices apply)

Screenshots (if appropriate):

Checklist

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• All new and existing tests passed locally
• I have added necessary documentation (if appropriate)

Further comments

Locally, 14 existing unit tests fail only because Sauce credentials are not set (MissingCredentials). They are not related to this change.

🤖 Generated with Claude Code

[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

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🟢 Metrics 4 complexity · 0 duplication

Metric	Results
Complexity	4
Duplication	0

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