feat: add new tool for reading media files (Image / Audio)

[hashemix]

📌 Summary

This PR introduces two new tools designed specifically for handling binary media (image/audio) files . These tools allow the system to process and return image and audio data in Base64 format, . Additionally, it supports concurrent reading of multiple media files, returning all results in a single result.

Both tools include an optional max_bytes attribute, which allows you to limit the maximum number of bytes read from each file.

🔍 Related Issues

• Add media file reading #33

✨ Changes Made

• Added read_mdia_file tool for reading a single media file
• Added read_multiple_media_files for efficient reading of multiple media files in a single request
• Renamed read_file to read_text_file and read_multiple_files to read_multiple_text_files for improved clarity and consistency.

🛠️ Testing Steps

cargo make check