Team.get_agentlet: accept and forward active_mcp_servers

[romans127]

Summary: Fixes a TypeError when using Team with the orchestrator. The orchestrator passes active_mcp_servers into actor.get_agentlet(...). Agent.get_agentlet supports this parameter, but Team.get_agentlet did not accept or forward it, causing a mismatch.

Changes:

• Add optional active_mcp_servers: list[MCPServer] | None to Team.get_agentlet signature
• Forward to self.active_member.get_agentlet(...)
• Import MCPServer in team.py
• Add a unit test tests/agents/test_team_mcp_forward.py to assert forwarding without invoking an LLM

Backwards compatibility: Optional parameter only; no breaking changes.

Motivation: Ensures teams work with MCP integration through the orchestrator, aligning Team with Actor/Agent signatures.

[Copilot]

Pull Request Overview

This PR addresses a TypeError that occurs when using Team objects with the orchestrator by adding MCP server support to the Team class. The orchestrator passes active_mcp_servers to get_agentlet(), which Agent supports but Team previously did not, causing a signature mismatch.

• Add active_mcp_servers parameter to Team.get_agentlet() method signature
• Forward the parameter to the active member's get_agentlet() call
• Add unit test to verify proper parameter forwarding

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/marvin/agents/team.py	Adds MCPServer import and active_mcp_servers parameter to get_agentlet() method with proper forwarding
tests/agents/test_team_mcp_forward.py	Adds unit test to verify MCP servers parameter is correctly forwarded to active team member

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[romans127]

Conceded to #1219 identical solution, but handles documentation + examples. Well done 🥇