v1.1.0 - Retrofit do kanonu MCP MateMatic

Retrofit do kanonu MCP MateMatic (dograh v1.31.0 BSD-2 via mcp-eu-compliance). Backward-compatible.

Added

• instructions w Server (status aktu kluczowy, ELI cytowalnosc)
• ToolAnnotations (readOnlyHint + openWorldHint dla ELI live)
• ErrorCode: missing_arg, invalid_eli, not_found, upstream_error
• Walidacja ELI + routing HTTP 404
• Drift test