Add favicon support for both Cloudflare Workers and Node.js

[MahammadNuriyev62]

Summary

This PR adds favicon support to the MCP server, providing both ICO and SVG formats for better branding and user experience. The implementation works across both Cloudflare Workers and Node.js HTTP server environments.

Changes

• New file: src/icon.ts - Contains icon assets:

  • ICON_SVG: An SVG favicon featuring a stylized eye/bracket design with dark background and light blue accent
  • ICON_ICO_BASE64: Base64-encoded ICO file with multiple resolutions (16x16, 32x32, 64x64 PNG images)

• Updated src/index.ts (Cloudflare Workers):

  • Added favicon.ico endpoint that decodes base64 ICO data and returns it with appropriate caching headers
  • Added favicon.svg endpoint that serves the SVG icon with caching headers
  • Both endpoints use 24-hour cache control for performance

• Updated src/main.ts (Node.js HTTP server):

  • Added matching favicon.ico endpoint using Node.js Buffer for base64 decoding
  • Added matching favicon.svg endpoint
  • Consistent caching strategy with Cloudflare Workers implementation

Implementation Details

• Both favicon formats are served with Cache-Control: public, max-age=86400 for optimal caching
• The ICO file is stored as base64 to keep it as a string constant in the codebase
• SVG is stored as a raw string for easy modification
• Endpoints are placed before the main MCP endpoint to ensure they're matched first
• Implementation is identical across both server environments for consistency

https://claude.ai/code/session_01TF2N6ru2CZX9Uy4xdfBKgf