Macro log_activity 

log_activity!() { /* proc-macro */ }

Emit a structured tracing::info! event for a named activity.

Description

Previously locked the global LOGGER mutex and called append_log. This expansion now emits a direct tracing::info! event. No mutex is acquired; no string buffer is modified. Compatible with async runtimes.

Usage

log_activity!("encrypt_file", format!(" path={}", path.display()));