fix: 仅按 Token 阈值压缩上下文

- EasyFlow 调用方忽略新旧消息数压缩配置

- 保留最小 Token 阈值与最近消息保留数量

- 隐藏智能体配置页的消息数阈值

easyflow-modules/easyflow-module-agent/src/test/java/tech/easyflow/agent/runtime/AgentRuntimeCompilerModelConfigTest.java

@@ -1,5 +1,6 @@
 package tech.easyflow.agent.runtime;
 
+import com.easyagents.agent.runtime.memory.AgentMemoryPolicy;
 import com.easyagents.agent.runtime.model.AgentGenerationOptions;
 import com.easyagents.agent.runtime.model.AgentHttpVersionPolicy;
 import com.easyagents.agent.runtime.model.AgentModelSpec;
@@ -65,6 +66,36 @@ public class AgentRuntimeCompilerModelConfigTest {
         Assert.assertEquals(AgentHttpVersionPolicy.AUTO, spec.getHttpVersionPolicy());
     }
 
+    /**
+     * 验证 EasyFlow 忽略新旧消息数阈值，仅保留 Token 压缩配置。
+     *
+     * @throws Exception 反射调用失败时抛出
+     */
+    @Test
+    public void memoryCompressionShouldIgnoreMessageThresholdConfiguration() throws Exception {
+        AgentRuntimeCompiler compiler = new AgentRuntimeCompiler();
+        Map<String, Object> compressionConfig = Map.of(
+                "enabled", true,
+                "msgThreshold", 12,
+                "lastKeep", 8,
+                "minCompressionTokenThreshold", 128000
+        );
+        Map<String, Object> memoryConfig = Map.of(
+                "compressionParameter", compressionConfig,
+                "maxAttachedMessageCount", 12,
+                "historyLimit", 12
+        );
+
+        AgentMemoryPolicy policy = invokeMemoryPolicy(compiler, memoryConfig);
+
+        Assert.assertEquals(Integer.valueOf(Integer.MAX_VALUE),
+                policy.getCompressionParameter().getMsgThreshold());
+        Assert.assertEquals(Integer.valueOf(128000),
+                policy.getCompressionParameter().getMinCompressionTokenThreshold());
+        Assert.assertEquals(8, policy.getCompressionParameter().getLastKeep());
+        Assert.assertEquals(50, policy.getMaxAttachedMessageCount());
+    }
+
     /**
      * 创建已注入模型服务的编译器。
      *
@@ -127,4 +158,19 @@ public class AgentRuntimeCompilerModelConfigTest {
         method.setAccessible(true);
         return (AgentModelSpec) method.invoke(compiler, agent);
     }
+
+    /**
+     * 调用私有记忆策略编译方法。
+     *
+     * @param compiler 编译器
+     * @param config 记忆配置
+     * @return 记忆策略
+     * @throws Exception 反射调用失败时抛出
+     */
+    private AgentMemoryPolicy invokeMemoryPolicy(AgentRuntimeCompiler compiler,
+                                                 Map<String, Object> config) throws Exception {
+        Method method = AgentRuntimeCompiler.class.getDeclaredMethod("buildMemoryPolicy", Map.class);
+        method.setAccessible(true);
+        return (AgentMemoryPolicy) method.invoke(compiler, config);
+    }
 }