refactor: migrate nativeSdkHelpers module to TS

[jaissica12]

Background

• Continuing the effort to migrate remaining JavaScript modules to TypeScript for improved type safety and developer experience across the SDK codebase.

What Has Changed

• Converted src/nativeSdkHelpers.js to src/nativeSdkHelpers.ts with full type annotations on all methods, parameters, and return types
• Updated src/nativeSdkHelpers.interfaces.ts to correct the sendViaBridgeV2 parameter type from boolean to string

Screenshots/Video

• {Include any screenshots or video demonstrating the new feature or fix, if applicable}

Checklist

• I have performed a self-review of my own code.
• I have made corresponding changes to the documentation.
• I have added tests that prove my fix is effective or that my feature works.
• I have tested this locally.

Additional Notes

• {Any additional information or context relevant to this PR}

Reference Issue (For employees only. Ignore if you are an outside contributor)

• Closes https://go/j/SDKE-1110

[cursor]

PR Summary

Low Risk
Mechanical TS migration and an interface typo fix; native bridge routing logic is unchanged aside from typing.

Overview
Migrates nativeSdkHelpers from JavaScript to TypeScript: the constructor is typed against INativeSdkHelpers and IMParticleWebSDKInstance, and bridge helpers use explicit parameter/return types plus Dictionary casts for dynamic window / mpInstance fields.

The public contract is tightened by fixing sendViaBridgeV2’s third argument in nativeSdkHelpers.interfaces.ts from boolean to string (the bridge name), matching how requiredWebviewBridgeName is actually passed. Style-only updates include const/let, arrow methods, and this instead of a closure self reference—behavior for native v1/v2 webview messaging should stay the same.

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[sonarqubecloud]

Quality Gate passed

Issues
27 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud