add nostream chat example

examples/nostream_chat.py

@@ -0,0 +1,55 @@
+#!/usr/bin/env python3
+"""
+Simple CLI script to interact with /chat endpoint in non-stream mode.
+"""
+
+import asyncio
+import aiohttp
+import json
+import sys
+from datetime import datetime
+
+
+API_BASE_URL = "http://localhost:8000"
+
+
+async def chat(session_id: str, text: str):
+    """Send a non-streaming chat request."""
+    timestamp = datetime.now().isoformat()
+
+    payload = {
+        "sessionId": session_id,
+        "timeStamp": timestamp,
+        "text": text
+    }
+
+    async with aiohttp.ClientSession() as http_session:
+        async with http_session.post(
+            f"{API_BASE_URL}/chat",
+            json=payload,
+        ) as response:
+            data = await response.json()
+
+            print(f"Status: {response.status}")
+            print("-" * 50)
+            print(json.dumps(data, indent=2, ensure_ascii=False))
+
+
+async def main():
+    if len(sys.argv) < 3:
+        print("Usage: python nostream_chat.py <session_id> <message>")
+        print("Example: python nostream_chat.py test-session-123 '发生了交通事故'")
+        sys.exit(1)
+
+    session_id = sys.argv[1]
+    text = " ".join(sys.argv[2:])
+
+    print(f"Session ID: {session_id}")
+    print(f"Message: {text}")
+    print("-" * 50)
+
+    await chat(session_id, text)
+
+
+if __name__ == "__main__":
+    asyncio.run(main())