v0.1.0 - URL Export and Multithreading

This release introduces new crawling flexibility and analysis features.

New Features:

• --export-urls: Export all visited URLs to urls.txt
• --no-download: Crawl without downloading files
• --threads: Multi-threaded crawling support

Improvements:

• Updated README documentation
• Enhanced CLI usability

This update improves workflow control for educational web crawling and client-side analysis.