lastfm-mcp v2.5.0 — Latest MCP protocol support

The server now speaks the current MCP revision (2026-07-28, the stateless one) natively, while older clients keep working through the SDK's compatibility lane. Tool responses also got smarter about what to call next, and two long-standing crash bugs in the public catalog tools are gone. Breaking changes The Mcp-Session-Id header is no longer read or echoed, since the 2026-07-28 spec removed protocol sessions. If you connected through the manual /login flow, pass ?session_id= on the /mcp URL, which was always the documented way. Nothing changes for OAuth clients such as Claude.ai, Claude Code, or Claude Desktop. What's new MCP 2026-07-28 support: server/discover, the _meta request envelope, and the MCP-Protocol-Version, Mcp-Method, and Mcp-Name headers. Clients on the 2024 and 2025 revisions still connect with initialize and get the same tools. Every tool response ends with a "Next steps" block listing the most likely follow-up calls with their exact arguments. Where the response has a…