feat: pro api support, trending coins api

[Lukapetro]

Relates to

• Feature/plugin coingecko #1761

Risks

Low - Adding new functionality and API support with proper error handling

Background

What does this PR do?

1. Adds support for CoinGecko Pro API

   • Configurable through environment variables
   • Automatic handling of both free and pro API endpoints
   • Proper header management for API authentication

2. Implements new trending coins functionality

   • New /search/trending endpoint integration
   • Support for coins, NFTs, and categories data
   • Structured response formatting

What kind of change is this?

Features (non-breaking change which adds functionality)

• Pro API integration
• New trending data endpoint
• Enhanced type safety and error handling

Documentation changes needed?

Yes - Documentation needs to be updated to include:

• New environment variables (COINGECKO_API_KEY, COINGECKO_PRO_API_KEY)
• New functionality usage examples

Testing

Where should a reviewer start?

1. Review environment configuration changes:

   • packages/plugin-coingecko/src/environment.ts
   • packages/plugin-coingecko/src/constants.ts

2. Review new functionality

Detailed testing steps

1. Test Pro API Configuration:

# Test with free API
export COINGECKO_API_KEY="your-free-api-key"
# Test with pro API
export COINGECKO_PRO_API_KEY="your-pro-api-key"

2. Test Trending Functionality:

// Example queries
"What's trending in crypto?"
"Show me hot cryptocurrencies"
"What's popular in the crypto market?"

Screenshots

Discord username

0xspit

Addition

Special thanks to soon-aik, PM from coingecko. for cooperation. He created this document with guidelines for integrating endpoints into this PR and provided me with the PRO account free of charge to test the endpoints