Add Extra Multimedia Support for Telegram Client

[astinz]

Relates to

Risks

Background

What does this PR do?

Adds more multimedia support to tg client. video, audio, and documents

What kind of change is this?

Features (non-breaking change which adds functionality)

Documentation changes needed?

Testing

Where should a reviewer start?

1. Create an Agent with a TG Client
2. Process a response with the attached media type

Detailed testing steps

await callback({
                text: YOUR RESPONSE,
                attachments: [{
                    id: "123456",
                    url: "https://github.com/MystenLabs/sui/raw/main/doc/paper/sui.pdf",
                    title: "Demo PDF Document",
                    source: "sui.io",
                    description: "A sample PDF document for demonstration purposes.",
                    text: "This is a demo PDF document used to showcase content extraction and processing. It contains sample text for testing purposes.",
                    contentType: "doc"
                }],
            });

Discord username

@em.eieiron