Windows CLI MCP Server

# configMerge - **handles user config enabling subset of shells** – merging honours explicit enable/disable flags while keeping defaults for others. - **uses defaults when sections omitted** – missing global sections retain default values during merge. - **omitted shells retain defaults** – unspecified shells are included with default configuration. - **empty arrays override defaults** – specifying empty blocked lists results in no restrictions. - **shell overrides without restrictions do not copy defaults** – default shell restrictions are ignored unless provided.