feat: 在测试中使用默认的 ToolContext，简化测试用例的上下文设置

src/tools/memory_manage.rs

@@ -234,6 +234,7 @@ mod tests {
             session_id: Some(format!("{}:chat-1", TEST_CHANNEL)),
             message_id: Some("msg-1".to_string()),
             message_seq: Some(1),
+            ..ToolContext::default()
         };
 
         let put = tool

src/tools/memory_search.rs

@@ -236,6 +236,7 @@ mod tests {
             session_id: Some(format!("{}:chat-1", TEST_CHANNEL)),
             message_id: Some("msg-2".to_string()),
             message_seq: Some(2),
+            ..ToolContext::default()
         };
 
         let search = tool

src/tools/scheduler_manage.rs

@@ -672,6 +672,7 @@ mod tests {
                     session_id: Some(format!("{}:oc_demo", TEST_CHANNEL)),
                     message_id: Some("msg-1".to_string()),
                     message_seq: Some(1),
+                    ..Default::default()
                 },
                 json!({
                     "action": "put",