Update Token & Native Metadata to use REFRESH MV's

[DenisCarriere]

AI Summary

This pull request enhances support for Solana (SVM) token metadata endpoints by improving the accuracy of token metadata queries, adding a dedicated endpoint for native SOL token metadata, and updating OpenAPI documentation and example responses. The changes also include code cleanup and improved schema definitions.

Solana (SVM) Token Metadata Improvements:

• Refactored the SVM token metadata SQL query (svm.sql) to use new balances_metadata, metadata, and decimals_state tables, improving accuracy and performance for circulating supply, holders, and decimals information. [1] [2]
• Updated the token metadata endpoint (svm.ts) to support optional mint queries, improved parameter validation, and updated response examples to reflect current data and schema. [1] [2] [3] [4]

Native SOL Token Endpoint:

• Added a new endpoint and SQL query for native SOL token metadata (svm_native.ts, svm_native.sql), providing circulating supply, holders, and metadata for the native token. [1] [2]
• Registered the new native token endpoint in the main router and imported the new module. [1] [2]

Codebase and Documentation Cleanup:

• Removed unused imports and code, such as the injectIcons function from the SVM token endpoint. [1] [2]
• Ensured database configuration checks include the new accounts database for improved error handling.

These changes collectively improve the reliability, maintainability, and completeness of SVM token metadata endpoints.