chore: upgrade Pipecat to 1.13.0 and adapt MCP 2.x

backend/services/tools/mcp_client.py

@@ -10,13 +10,13 @@ from __future__ import annotations
 import hashlib
 import json
 from contextlib import asynccontextmanager
-from datetime import timedelta
 from typing import Any, AsyncIterator
 
-import httpx
+import httpx2 as httpx
 from mcp import ClientSession
 from mcp.client.sse import sse_client
 from mcp.client.streamable_http import streamable_http_client
+from mcp.types import PaginatedRequestParams
 
 from models import RuntimeMcpServer
 
@@ -59,7 +59,7 @@ class McpToolClient:
                     server.url,
                     http_client=http_client,
                 ) as streams:
-                    read_stream, write_stream, _ = streams
+                    read_stream, write_stream = streams
                     yield read_stream, write_stream
             return
 
@@ -88,7 +88,7 @@ class McpToolClient:
                 async with ClientSession(
                     read_stream,
                     write_stream,
-                    read_timeout_seconds=timedelta(seconds=timeout),
+                    read_timeout_seconds=timeout,
                 ) as session:
                     await session.initialize()
                     yield session
@@ -105,9 +105,11 @@ class McpToolClient:
         async with self._session(server) as session:
             cursor: str | None = None
             while True:
-                result = await session.list_tools(cursor=cursor)
+                result = await session.list_tools(
+                    params=PaginatedRequestParams(cursor=cursor) if cursor else None,
+                )
                 for tool in result.tools:
-                    input_schema = dict(tool.inputSchema or {})
+                    input_schema = dict(tool.input_schema or {})
                     discovered.append(
                         {
                             "name": tool.name,
@@ -116,7 +118,7 @@ class McpToolClient:
                             "schema_hash": schema_hash(input_schema),
                         }
                     )
-                cursor = result.nextCursor
+                cursor = result.next_cursor
                 if not cursor:
                     break
         return discovered
@@ -132,14 +134,14 @@ class McpToolClient:
             result = await session.call_tool(
                 remote_tool_name,
                 arguments=arguments,
-                read_timeout_seconds=timedelta(seconds=server.timeout_seconds),
+                read_timeout_seconds=server.timeout_seconds,
             )
 
         data = self._normalize_result(result)
         encoded = json.dumps(data, ensure_ascii=False, default=str).encode("utf-8")
         if len(encoded) > MAX_MCP_RESULT_BYTES:
             raise McpClientError("MCP 工具响应超过 1 MB 限制")
-        if bool(result.isError):
+        if bool(result.is_error):
             message = data.get("text") or "MCP 工具返回执行错误"
             raise McpClientError(str(message)[:2048])
         return data
@@ -171,6 +173,6 @@ class McpToolClient:
 
         return {
             "text": "\n".join(text_parts),
-            "structuredContent": result.structuredContent,
+            "structuredContent": result.structured_content,
             "content": content,
         }