pub fn init_logging(verbosity: u8, is_tui: bool)Expand description
Initialize the global tracing subscriber.
Must be called early in main(), before any SDK calls (which emit tracing events).
verbosity: from the-vflag count. 0 = warn (or RUST_LOG fallback), 1 = info, 2 = debug, 3+ = trace.is_tui: when true, omits the stderr layer (ratatui owns the terminal).