v0.18.0

• Add a document CLI and library for reading and editing config/data files (show/get/value/set/add/remove/unset) over JSON, TOML, YAML, dotenv, and INI, with a format-neutral Value model, dot-path grammar, keyed lists, typed serde, schema, and source-preserving atomic edits guarded against symlink/hardlink attacks
• Rename the format subcommand to render, and make AFDATA YAML output structure-preserving (raw keys and types) across all four languages, with lossy transforms confined to plain
• Result, progress, and log builders build() now return an Event directly instead of a Result since they cannot fail; only the error builder stays fallible and defers empty code/message errors to build()
• Protocol validation now returns a typed ProtocolViolation (stable rule slug, JSON pointer, and message) instead of a plain string, and the stream validator collects every violation instead of failing fast, so agents can distinguish kind_invalid, unexpected_field, error_code_invalid, and stream_duplicate_terminal
• Collapse the eight output functions (output_json/output_yaml/output_plain plus their variants and cli_output) into a single render(value, format, options) entry point across all four languages
• Rename and default the redaction policy to { All (default), TraceOnly, Off }, and rename OutputStyle to PlainStyle to state its plain-only scope
• Document mutation verbs now take a typed Value instead of CLI strings, with string coercion moved to the CLI layer, and the verb vocabulary unified to get/set/unset/add/remove
• Simplify version and help handling: bare --version prints conventional text while --output json|yaml emits a protocol-v1 result event, and --help --output json|yaml wraps the help schema in the same envelope, removing the old configurable and legacy modes
• Surface polish: drop the Event Deref impl (keeping as_value/into_value/From), rename Document::from_str to Document::parse, make "all" the only LogFilters wildcard, and make Redactor::redact_in_place public
• Fix the version pre-parser to stop at the first subcommand boundary (like git and cargo), so a subcommand --version value is no longer hijacked as a top-level version request
• Refresh docs for the new document CLI (keyed add/remove is JSON/YAML only) and upgrade GitHub Actions to Node 24 releases