актуализация документации и manual теста

tests/manual.py

@@ -1,7 +1,7 @@
 import asyncio
 import traceback
 
-from lambda_agent_api.agent_api import AgentApi
+from lambda_agent_api.agent_api import AgentApi, AgentBusyException
 from lambda_agent_api.server import MsgEventTextChunk, MsgEventToolCallChunk, MsgEventToolResult
 
 
@@ -10,7 +10,12 @@ async def main():
     chat_id = input("Chat id: ") or 0
     api = AgentApi("agent-1", "ws://localhost:8000/agent_ws/", chat_id=chat_id)
 
-    await api.connect()
+    try:
+        await api.connect()
+    except AgentBusyException:
+        print(f"Чат {chat_id} занят другим клиентом")
+        return
+
     while True:
         try:
             prompt = await asyncio.get_event_loop().run_in_executor(None, input, ">>> ")