docs: update registry agents

Author: benbrandt

docs/get-started/registry.mdx

@@ -406,6 +406,43 @@ Visit [the registry repository on GitHub](https://github.com/agentclientprotocol
       <code>0.1.0</code>
     </p>
   </Card>
+  <Card
+    title="DeepAgents"
+    href="https://github.com/langchain-ai/deepagentsjs"
+    icon={
+      <svg
+        width="20"
+        height="20"
+        className="agent-icon"
+        aria-hidden="true"
+        focusable="false"
+        xmlns="http://www.w3.org/2000/svg"
+        viewBox="0 0 128 128"
+      >
+        <path
+          fill="currentColor"
+          d="M40.1024 85.0722C47.6207 77.5537 51.8469 67.3453 51.8469 56.7136C51.8469 46.0818 47.617 35.8734 40.1024 28.355L11.7446 0C4.22995 7.5185 0 17.7269 0 28.3586C0 38.9903 4.22995 49.1987 11.7446 56.7172L40.0987 85.0722H40.1024Z"
+        />
+        <path
+          fill="currentColor"
+          d="M99.4385 87.698C91.9239 80.1832 81.7121 75.9531 71.0844 75.9531C60.4566 75.9531 50.2448 80.1832 42.7266 87.698L71.0844 116.057C78.599 123.571 88.8107 127.802 99.4421 127.802C110.074 127.802 120.282 123.571 127.8 116.057L99.4421 87.698H99.4385Z"
+        />
+        <path
+          fill="currentColor"
+          d="M11.8146 115.987C19.3329 123.502 29.541 127.732 40.1724 127.732V87.6289H0.0664062C0.0700559 98.2606 4.29635 108.469 11.8146 115.987Z"
+        />
+        <path
+          fill="currentColor"
+          d="M110.387 45.7684C102.869 38.2535 92.6608 34.0198 82.0258 34.0234C71.3943 34.0234 61.1863 38.2535 53.668 45.772L82.0258 74.1306L110.387 45.7684Z"
+        />
+      </svg>
+    }
+  >
+    Batteries-included AI coding and general purpose agent powered by LangChain.
+    <p class="text-xs mt-3">
+      <code>0.1.1</code>
+    </p>
+  </Card>
   <Card
     title="DimCode"
     icon={