v0.14.0

Added

• Owned (lifetime-free) parse API: parse() and parse_versioned() return a fully-owned ParseResult with no lifetime parameters; existing arena API is now parse_arena() / parse_arena_versioned() (php-rs-parser).
• php_ast::owned module — every AST type mirrored with Box<str> / Box<[T]> instead of arena references; JSON serialisation is byte-for-byte identical to arena types (php-ast).
• OwnedVisitor, OwnedScopeVisitor, OwnedScopeWalker, and walk_owned_* free functions for traversing owned ASTs without managing lifetimes (php-ast).
• FoldOwned trait and fold_owned_* free functions for transforming owned ASTs; identity defaults rebuild the tree identically (php-ast).
• pretty_print_owned, pretty_print_owned_file, and related helpers for printing owned ASTs directly — converts owned→arena via a short-lived bump arena internally (php-printer).
• ParserContext::reparse_owned and reparse_owned_versioned for lifetime-free re-parses (php-rs-parser).