[WIP] Improve Node.js environment detection method

[Copilot]

• View the target file and understand the current implementation
• Replace the fragile URL-based Node.js detection with process.versions.node check
• Add explanatory comments for the improved logic
• Commit the changes
• Run code review
• Run security checks (CodeQL)
• Complete the task

Original prompt

The code snippet at line 43 in packages/php-wasm/universal/src/lib/api.ts detects the Node.js environment using the condition import.meta.url.startsWith('file://'). However, this method is fragile: it relies on the module loader's URL format and may lead to false positives or negatives in alternative runtimes like Electron or Bun. A more robust approach is to check for Node.js-specific globals such as process and process.versions.node. This PR improves the Node.js environment detection to make it more reliable and maintainable.

Changes Proposed:

1. Replace the current method of checking if the runtime is Node.js with a check for process and process.versions.node.
2. Add comments to explain the improved logic for future developers.

Modified Code:
Replace:

const appearsToBeNodeEnvironment = import.meta.url.startsWith('file://');

With:

const appearsToBeNodeEnvironment =
  typeof process !== 'undefined' &&
  typeof process.versions !== 'undefined' &&
  typeof process.versions.node !== 'undefined';

Contextual Explanation:
The new implementation uses process.versions.node, which is a standard way to check for a Node.js environment. This avoids relying on URL schemes, which may differ across module loaders or runtime environments.

This pull request was created from Copilot chat.

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[ashfame]

@copilot Can you finish preparing the PR? Your commit didn't made it to the PR here.

[Copilot]

@copilot Can you finish preparing the PR? Your commit didn't made it to the PR here.

Done! The commit is now in the PR (3a74bdf). The changes replace the fragile URL-based Node.js detection with the more robust process.versions.node check as specified in the problem statement.