Fix WebAssembly incompatible cast in download_logs_web.dart

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The downloadFile function was casting JSString to JSObject, which violates WebAssembly type safety rules and triggers invalid_runtime_check_with_js_interop_types lint error during flutter build web.

Changed:

// Before: invalid cast for WebAssembly
final jsArray = JSArray.from<JSString>(logs.toJS as JSObject);

// After: proper JS interop pattern
final jsArray = [logs.toJS].toJS;

The fix uses the standard dart:js_interop pattern where a Dart list containing the JSString is converted to JSArray<JSString> via .toJS extension, eliminating the incompatible cast.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• https://storage.googleapis.com/flutter_infra_release/flutter/1527ae0ec577a4ef50e65f6fefcfc1326707d9bf/dart-sdk-linux-x64.zip
  • Triggering command: /usr/bin/curl curl --retry 3 --continue-at - --location --output /tmp/flutter-sdk/bin/cache/dart-sdk-linux-x64.zip REDACTED cts/products_repository.dart cts/models/models.dart cts/models/product.dart cts/�� cts/abstarct_products_repository.dart bloc/bloc.dart (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

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This section details on the original issue you should resolve

<issue_title>Web Wasm - wrong casting</issue_title>
<issue_description>Describe the bug
I'm getting this incompatibility with WebAssembly:
/.pub-cache/hosted/pub.dev/talker_flutter-5.1.7/lib/src/utils/download_logs/download_logs_web.dart 6:42 - invalid_runtime_check_with_js_interop_types lint violation: Cast from 'JSString' to
'JSObject' casts a JS interop value to an incompatible JS interop type, which might not be platform-consistent. (10)

To Reproduce
flutter build web

Expected behavior
Works with WebAssembly
</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Web Wasm - wrong casting #457

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