2.0.0 WebSearch, Advanced Categorization, Rate Limiting, and Feature Flags

Thanks to great contribution by @kevingatera there are a lot of changes in this release. 🥳

Key Changes:

• Added feature flag system for dynamic configuration
• Implemented robust rate limiter with token bucket algorithm
• Added new category suggestions with similarity matching
• Integrated web search for merchant context
• Improved transaction processing with batch support

More info in Readme.md.

What's Changed

• Advanced Categorization, Rate Limiting, and Feature Flags by @kevingatera in #177
• Bump @typescript-eslint/parser from 8.25.0 to 8.26.1 by @dependabot in #189
• Bump @types/node from 22.13.1 to 22.13.10 by @dependabot in #179
• Bump ts-jest from 29.2.5 to 29.2.6 by @dependabot in #169
• Bump more dependecies

Full Changelog: 1.8.0...2.0.0