fix: extension fails to load with node 24

[GordonSmith]

fixes #77

[Copilot]

Pull Request Overview

This PR fixes an extension loading issue with Node.js 24 by removing navigator polyfills that are no longer needed and may cause conflicts. The fix addresses issue #77 where the extension fails to load due to navigator global handling incompatibilities.

Key changes:

• Removes the navigator polyfill implementation that was added for Node.js 21+ compatibility
• Eliminates the injection of polyfills during the build process
• Removes associated test coverage for the polyfill functionality

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
src/node-polyfills.js	Completely removes the navigator polyfill implementation and browser global handling
tests/navigator-polyfill.test.ts	Removes all test cases that verified the polyfill functionality
esbuild.mjs	Removes the injection of node-polyfills.js from both discovery and main build processes

Comments suppressed due to low confidence (1)

esbuild.mjs:658

• The removed polyfill injection may have been addressing compatibility issues with dependencies that expect browser globals. Consider verifying that the extension still works correctly with all WASM modules and dependencies, particularly wit-bindgen-wasm, which may have relied on the navigator global or other polyfilled features.

        });