strip ansi escapes from systemd-managed daemon logs

hive-agent/src/main.rs

@@ -96,6 +96,10 @@ async fn main() -> Result<()> {
             tracing_subscriber::EnvFilter::try_from_default_env()
                 .unwrap_or_else(|_| tracing_subscriber::EnvFilter::new("info")),
         )
+        // This is a systemd-managed daemon — stdout always goes to journald,
+        // never a human terminal, and journald doesn't strip ANSI escapes:
+        // they land in victorialogs as raw byte-array spam otherwise.
+        .with_ansi(false)
         .init();
 
     let cli = Cli::parse();