v0.9.0

Added

• Backed enum cases (enum E: int) now require a value; pure enum cases now reject values. Both emit ParseError::Forbidden pointing to the missing or unwanted = token (php-rs-parser, #269).
• readonly properties and constructor-promoted parameters without a type hint now emit ParseError::Forbidden (php-rs-parser, #268).
• break and continue outside a loop or switch now emit a parse error; numeric level arguments are validated against the current loop depth (php-rs-parser, #265).

Tests

• Span coverage fixtures added for const statement declarations (php-rs-parser, #267).
• Span coverage fixtures added for first-class callable expressions (php-rs-parser, #266).

Documentation

• CONTRIBUTING guide improved and ROADMAP restructured (#264).
• Acknowledgements section added for nikic/PHP-Parser and the PHP community (#254).
• README reorganized for clarity and audience separation (#253).
• docs/INDEX.md navigation path for tool consumers updated (#250).