🚀 Add Speaker Fetch Tool to codemotion-mcp-server

[Copilot]

Implementation Details

This PR adds a new speakers tool to the codemotion-mcp-server that allows users to retrieve the list of speakers from the Codemotion agenda, with support for semantic search using embeddings.

Key Features

• Implemented speakerTool.ts with functionality to:

  • Return all speakers when called without a query
  • Search for specific speakers when a query is provided
  • Connect to QDrant to fetch speaker data
  • Handle speaker data in different formats (arrays, comma-separated strings)

• The tool integrates with existing infrastructure:

  • Uses the same OpenAI embedding approach as the sessions tool
  • Follows consistent formatting for responses
  • Registers in the MCP server alongside existing tools

Usage

The tool can be invoked via the MCP Inspector or GitHub Copilot Chat with:

@speakers - Returns all speakers
@speakers query:"AI" - Returns speakers related to AI topics

Documentation

Added details about the new tool to the README.md, explaining its functionality alongside the existing tools.

Fixes #2.

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