feat: persist sgclaw browser conversations

tests/compat_browser_tool_test.rs

@@ -201,3 +201,56 @@ async fn zeroclaw_browser_tool_keeps_domain_validation_in_mac_policy() {
             .contains("domain is not allowed")
     );
 }
+
+#[tokio::test]
+async fn zeroclaw_browser_tool_rejects_missing_required_action_parameters() {
+    let (transport, tool) = build_adapter(vec![]);
+
+    let missing_click_selector = tool
+        .execute(json!({
+            "action": "click",
+            "expected_domain": "www.baidu.com"
+        }))
+        .await
+        .unwrap();
+    let missing_text_selector = tool
+        .execute(json!({
+            "action": "getText",
+            "expected_domain": "www.baidu.com"
+        }))
+        .await
+        .unwrap();
+    let missing_navigate_url = tool
+        .execute(json!({
+            "action": "navigate",
+            "expected_domain": "www.baidu.com"
+        }))
+        .await
+        .unwrap();
+
+    assert!(!missing_click_selector.success);
+    assert!(!missing_text_selector.success);
+    assert!(!missing_navigate_url.success);
+    assert_eq!(transport.sent_messages().len(), 0);
+    assert!(
+        missing_click_selector
+            .error
+            .as_deref()
+            .unwrap()
+            .contains("click requires selector")
+    );
+    assert!(
+        missing_text_selector
+            .error
+            .as_deref()
+            .unwrap()
+            .contains("getText requires selector")
+    );
+    assert!(
+        missing_navigate_url
+            .error
+            .as_deref()
+            .unwrap()
+            .contains("navigate requires url")
+    );
+}