fix: update logging function parameters to align with MCP spec

Author: akshay-kumar-bm

tests/client/test_logging_callback.py

@@ -51,12 +51,12 @@ async def test_tool_with_log_extra(
         """Send a log notification to the client with extra fields."""
         await ctx.log(
             level=level,
-            data={
-                "message": message,
+            message=message,
+            logger_name=logger,
+            extra={
                 "extra_string": extra_string,
                 "extra_dict": extra_dict,
             },
-            logger_name=logger,
         )
         return True
 

tests/server/mcpserver/test_server.py

@@ -1072,9 +1072,9 @@ async def logging_tool(msg: str, ctx: Context) -> str:
     @pytest.mark.anyio
     async def test_context_logging_with_structured_data(self):
         """Test that context logging accepts structured data per MCP spec (issue #397)."""
-        mcp = FastMCP()
+        mcp = MCPServer()
 
-        async def structured_logging_tool(msg: str, ctx: Context[ServerSession, None]) -> str:
+        async def structured_logging_tool(msg: str, ctx: Context) -> str:
             # Test with dictionary
             await ctx.info({"status": "success", "message": msg, "count": 42})
             # Test with list