fix: accept unknown yargs types for filesystem root overrides

Co-authored-by: Joseph B <joebasrawi@users.noreply.github.com>

Author: cursoragent

src/config/mcp-options.ts

@@ -402,7 +402,7 @@ const UNRESTRICTED_PATHS_FLAGS = [
 ] as const;
 
 export interface FilesystemAccessFlags {
-  allowUnrestrictedPaths?: boolean;
+  allowUnrestrictedPaths?: unknown;
   filesystemRoot?: unknown;
 }