Make authToken Optional

[JesuTerraz]

• Makes authToken optional. If not provided, the registration service will attempt to authenticate using Agents SDK agentic auth

[Copilot]

Pull Request Overview

This PR adds default empty string values to the authToken parameter across three MCP tool registration service implementations. This change ensures the parameter is optional while maintaining backward compatibility.

• Changed the authToken parameter to have a default value of empty string in three service classes
• Maintains existing logic that fetches a token if none is provided
• Applies the same pattern consistently across OpenAI, LangChain, and Claude extensions

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
packages/agents-a365-tooling-extensions-openai/src/McpToolRegistrationService.ts	Added default empty string value to authToken parameter in addMcpToolServers method
packages/agents-a365-tooling-extensions-langchain/src/McpToolRegistrationService.ts	Added default empty string value to authToken parameter in addMcpToolServers method
packages/agents-a365-tooling-extensions-claude/src/McpToolRegistrationService.ts	Added default empty string value to authToken parameter in addToolServers method