pub fn log_to_surface(level: LogLevel, message: &str)Expand description
Project a diagnostic line to the log bucket (the live terminal).
Called by observer::log_categorized/the observer impls after the
L1 intake (session.log + fold ring) and after the
sink_active/min_level gate has decided the line should reach the
live surface (SRD-87 §5). Routes to the installed channel — the sole
fd owner — falling back to a direct colorized stderr write before any
channel is installed (bootstrap), so behavior is unchanged.