fix terminal for http claw connection

Author: OnTheThirdDay

crates/example-eventage-claw/src/channels/terminal.rs

@@ -35,7 +35,12 @@ pub async fn run_terminal_channel(
         })
         .await?;
 
-        let Some(raw) = line else { break };
+        let Some(raw) = line else {
+            // stdin closed (headless/Docker) — block until killed so the HTTP
+            // channel keeps running.
+            std::future::pending::<()>().await;
+            break;
+        };
         let trimmed = raw.trim().to_string();
         if trimmed.is_empty() {
             continue;