Wed May 27 12:52:38 -03 2026:
    - Implemented auto_help functionality for automatic documentation generation.
    - Added NULL_PTR constant (&str) for cleaner argument configuration and placeholder management.
    - Updated collect_rest to return self, enabling fluent API chaining.
    - Refined require_args logic for more consistent input validation.
    - Introduced environment variable support in the argument parsing system.
    - Added options module to transition configuration from function calls to ParserOptions struct.
    - Moved strict validation setting to ParserOptions.
    - Moved collect_rest configuration to ParserOptions.
    - Updated Arg::option to support PathBuf and other FromStr-compatible types.
    - Moved passthrough configuration to ParserOptions.
    - Moved require_args configuration to ParserOptions.
Sat May 16 13:33:02 -03 2026:
    - Fixed a conflict where missing essential arguments incorrectly masked strict validation errors.
Fri May 15 11:05:59 -03 2026:
    - Rule-based parsing: maps arguments directly to local variables or closures.
    - Thread-safe integration: native support for RwLock targets via rw_bool, rw_set, and rw_value.
    - Strict depth control: adjustable validation levels with strict, strict_level, and strict_first.
    - Flexible action results: supports closures returning () or Result via IntoActionResult trait.
    - Positional tracking: manages unmatched arguments with original input index tracking.
    - Standardized reporting: consistent error messages for invalid or missing arguments.
    - Advanced collection: support for list collection and optional value extraction.
    - Clean API: modular design with chainable result handling.
