v1.4.13

• Pass user generation params (temperature, top_p, top_k, max_tokens) to LLM in both chat and tool_agent modes
• Make serve.py robust for Windows — optional imports for redis/flask_sse/mcp, better error handling, NPCSH_BASE env var
• Fix MCP server engine step rendering — action/args from _raw_steps now template-rendered with tool call arguments
• Add Windows CI tests for serve.py imports, settings round-trip, and server startup