feat(generator): select resumable upload methods

[feywind]

Adds a resumable_upload_methods generator parameter: a semicolon-separated list of Service.Method pairs that should be treated as resumable upload methods, e.g. ResumableUploadService.CreateResumableUpload.

Selected methods are augmented with a resumable upload descriptor, removed from the simple methods list, and exposed on the service as resumableUploads. The parameter is plumbed through the CLI, the typescript_gapic_library bazel rule and the naming options.

This PR is plumbing only — the templates that consume service.resumableUploads land separately, so generated output is unchanged. The pubsub api dump baselines are refreshed for the new resumableUploads field.

Verification

• npm run compile
• npm test — 190 passing (generator unit and baseline tests)

The resumable upload client templates build on this and will be sent as a follow-up.

Related to: #9283

[gemini-code-assist]

Code Review

This pull request introduces support for a new generator parameter, resumable_upload_methods, allowing users to specify service methods that should use the resumable upload protocol. This includes updates to Bazel rules, CLI parsing, and schema generation, along with corresponding unit tests. Feedback is provided to defensively check the type of the resumable-upload-methods parameter before calling .split() to prevent a potential runtime TypeError if it is parsed as a boolean.

[gemini-code-assist]

If resumable-upload-methods is passed as a boolean flag (e.g., without an explicit value), this.paramMap['resumable-upload-methods'] might be parsed as a boolean true. Calling .split(';') on a boolean will throw a runtime TypeError. We should defensively check that the value is a string before splitting. Additionally, ensure that this parameter parsing method has corresponding unit tests to verify that values are correctly parsed and normalized.

  private readResumableUploadMethods() {
    const value = this.paramMap['resumable-upload-methods'];
    if (typeof value === 'string') {
      this.resumableUploadMethods = value
        .split(';')
        .map(name => name.trim())
        .filter(name => name.length > 0);
    }
  }

References

1. Ensure that parameter parsing methods (such as readX methods) and parameter mapping (getParamMap) in the generator have corresponding unit tests to verify that values are correctly parsed and normalized (e.g., to kebab-case).