- Add server_span wrappers to list_tools, list_resources,
list_resource_templates, and list_prompts in FastMCP server
- Add client_span wrappers to list_tools_mcp, list_resources_mcp,
list_resource_templates_mcp, and list_prompts_mcp in client mixins
- Add optional `method` parameter to delegate_span in telemetry.py
and set mcp.method.name on delegate spans
- Update all delegate_span callers in fastmcp_provider.py to pass
the MCP method name (tools/call, resources/read, prompts/get)
- Add tests for new server list spans, client list spans, and
delegate span method attributes
Refs: #3887
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
