Release v4.55.1

Fixed

• The grammar reference matches both compilers for declaration order, projection targets and interactions, so people and AI agents generating from it get valid syntax (#354)
• The glossary no longer lists constructs that do not parse, and the policy and sub-language pages describe precedence and unknown slice constructs as the compilers handle them (#354)
• The capture grammar explains that a backtick guard is an opaque expression the compiler does not interpret (#354)
• Monaco highlights and indexes event properties named like clause keywords the same way the compiler does, while still recognizing file realization directives (#354)