Summarize old tool calls (#6119)

Co-authored-by: Douwe Osinga <douwe@squareup.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>

crates/goose-cli/src/commands/term.rs

@@ -186,7 +186,8 @@ pub async fn handle_term_log(command: String) -> Result<()> {
         chrono::Utc::now().timestamp_millis(),
         vec![MessageContent::text(command)],
     )
-    .with_metadata(MessageMetadata::user_only());
+    .with_metadata(MessageMetadata::user_only())
+    .with_generated_id();
 
     let session_manager = SessionManager::instance();
     session_manager.add_message(&session_id, &message).await?;