Macro TraceStep 

macro_rules! TraceStep {
    ($($arg:tt)*) => { ... };
}

Logs a checkpoint message at TRACE level (for “every step” tracing).

This macro provides a low-intrusion way to trace execution flow through the application startup and shutdown sequences. It expands to a single trace!() call which incurs zero overhead when TRACE logging is disabled.

Example

TraceStep!("[Boot] [Runtime] Building Tokio runtime...");
TraceStep!("[Boot] [Setup] Configuration loaded: {}", ConfigPath);

The macro accepts the same format arguments as the standard log!() macro:

• A literal format string
• Optional comma-separated values for format placeholders