Fix/claude thinking tool call conversion (#3756)

Signed-off-by: wydream <yaodiwu618@gmail.com>

plugins/wasm-go/extensions/ai-proxy/test/zhipuai.go

@@ -61,6 +61,58 @@ func RunZhipuAIClaudeAutoConversionTests(t *testing.T) {
 			assert.NotContains(t, bodyMap, "reasoning_effort")
 		})
 
+		t.Run("claude reasoning history disables zhipuai clear thinking", func(t *testing.T) {
+			host, status := test.NewTestHost(basicZhipuAIConfig)
+			defer host.Reset()
+			require.Equal(t, types.OnPluginStartStatusOK, status)
+
+			action := host.CallOnHttpRequestHeaders([][2]string{
+				{":authority", "example.com"},
+				{":path", "/v1/messages"},
+				{":method", "POST"},
+				{"Content-Type", "application/json"},
+			})
+			require.Equal(t, types.HeaderStopIteration, action)
+
+			requestBody := `{
+				"model": "glm-4.5",
+				"max_tokens": 1000,
+				"messages": [
+					{"role": "user", "content": "Need weather"},
+					{"role": "assistant", "content": [
+						{"type": "thinking", "thinking": "Need to call the weather tool.", "signature": "sig"},
+						{"type": "tool_use", "id": "toolu_1", "name": "get_weather", "input": {"city": "Paris"}}
+					]},
+					{"role": "user", "content": [
+						{"type": "tool_result", "tool_use_id": "toolu_1", "content": "sunny"}
+					]}
+				],
+				"thinking": {"type": "enabled", "budget_tokens": 8192}
+			}`
+
+			action = host.CallOnHttpRequestBody([]byte(requestBody))
+			require.Equal(t, types.ActionContinue, action)
+
+			transformedBody := host.GetRequestBody()
+			require.NotNil(t, transformedBody)
+
+			var bodyMap map[string]interface{}
+			err := json.Unmarshal(transformedBody, &bodyMap)
+			require.NoError(t, err)
+
+			thinking, ok := bodyMap["thinking"].(map[string]interface{})
+			require.True(t, ok, "thinking field should be present")
+			assert.Equal(t, "enabled", thinking["type"])
+			assert.Equal(t, false, thinking["clear_thinking"])
+
+			messages, ok := bodyMap["messages"].([]interface{})
+			require.True(t, ok, "messages should be present")
+			require.GreaterOrEqual(t, len(messages), 2)
+			assistantMsg, ok := messages[1].(map[string]interface{})
+			require.True(t, ok, "assistant message should be an object")
+			assert.Equal(t, "Need to call the weather tool.", assistantMsg["reasoning_content"])
+		})
+
 		t.Run("claude without thinking sets thinking disabled for zhipuai", func(t *testing.T) {
 			host, status := test.NewTestHost(basicZhipuAIConfig)
 			defer host.Reset()