fix: sanitize output in print-mode to prevent terminal escape sequences

- Add sanitizeText import to print-mode.ts

- Sanitize content.text before writing to stdout

- Prevents terminal control sequences from affecting user terminal

packages/coding-agent/src/modes/print-mode.ts

@@ -6,6 +6,7 @@
  * - `omp --mode json "prompt"` - JSON event stream
  */
 import type { AssistantMessage, ImageContent } from "@oh-my-pi/pi-ai";
+import { sanitizeText } from "@oh-my-pi/pi-natives";
 import type { AgentSession } from "../session/agent-session";
 
 /**
@@ -173,7 +174,7 @@ export async function runPrintMode(session: AgentSession, options: PrintModeOpti
 			// Output text content
 			for (const content of assistantMsg.content) {
 				if (content.type === "text") {
-					process.stdout.write(`${content.text}\n`);
+					process.stdout.write(`${sanitizeText(content.text)}\n`);
 				}
 			}
 		}