fix(js): resolve daemon path for global npm symlinks

[kuopenx-agent]

Summary

Fix daemon startup when camoufox-cli is installed globally via npm install -g or used via npm link.

When installed globally, the camoufox-cli executable is typically a symlink to dist/cli.js. The previous implementation derived daemon.js from import.meta.url directly, which can resolve relative to the symlink location instead of the real dist/ directory. Also, the CLI entrypoint check only matched paths ending in /cli.js or /cli.ts, so a symlinked executable like .../bin/camoufox-cli would not call main() at all.

Together, these issues can cause the daemon to fail to start or the CLI to silently exit with no output.

Closes #1.

Changes

• resolve the CLI module path with fs.realpathSync(fileURLToPath(import.meta.url))
• derive daemon.js from the resolved real path
• detect direct execution by comparing the real path of process.argv[1] against the module path
• add unit tests covering the symlinked executable case for both daemon path resolution and direct-run detection
• fix the README architecture text to say Daemon (Node.js) instead of Daemon (Python)

Validation

• npm --prefix js test
• npm --prefix js run build