Automate JavaScript stemmer generation for website deployment

[Copilot]

Generating the JavaScript stemmer for arabicstemmer.com required manual Snowball compilation, file copying, and bundling. This PR automates the entire workflow into a single command.

Changes

• scripts/generate_js_stemmer.sh: Orchestrates Snowball compiler, generates JS from algorithm/arabic.sbl, bundles base-stemmer + arabic-stemmer, adds UMD exports with globalThis fallback
• Makefile: Added js_stemmer target
• scripts/demo.html: Interactive demo with RTL support
• Documentation: Usage guide and light vs root-based stemmer distinction

Usage

make js_stemmer  # → dist/website/snowball.js

The generated bundle supports CommonJS, AMD, and browser globals:

// Node.js
const ArabicStemmer = require('./dist/website/snowball.js');

// Browser
<script src="snowball.js"></script>
<script>
  const stemmer = new ArabicStemmer();
  console.log(stemmer.stemWord('الطالب'));  // طالب
</script>

Optional minification with uglifyjs if available.

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:

• arabicstemmer.com
  • Triggering command: /usr/bin/curl curl -s REDACTED (dns block)
  • Triggering command: /usr/bin/curl curl -sL REDACTED (dns block)
• https://api.github.com/repos/assem-ch/arabicstemmer.com
  • Triggering command: /usr/bin/curl curl -s REDACTED (http block)
• https://api.github.com/repos/assem-ch/arabicstemmer/branches
  • Triggering command: /usr/bin/curl curl -s REDACTED (http block)
• https://api.github.com/search/repositories
  • Triggering command: /usr/bin/curl curl -s REDACTED (http block)
• https://api.github.com/users/assem-ch/repos
  • Triggering command: /usr/bin/curl curl -s REDACTED (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

---

This section details on the original issue you should resolve

<issue_title>Make a script to automate jssnowball generation of snowball.babel.js when the stemmer is changed</issue_title>
<issue_description> Make the script to update the js snowball that we use in website so the next time we update the stemmer we can do the update in one line
</issue_description>

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

• Fixes Make a script to automate jssnowball generation of snowball.babel.js when the stemmer is changed #15

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