chore: import upstream snapshot with attribution

docs/overrides/main.html

@@ -0,0 +1,26 @@
+{% extends "base.html" %}
+
+{% block content %}
+  <div id="version-warning" class="version-warning" style="display: none;">
+    ⚠️ You are viewing development documentation. For stable documentation, please visit
+    <a href="https://microsoft.github.io/agent-lightning/stable/">https://microsoft.github.io/agent-lightning/stable/</a>
+  </div>
+  {{ super() }}
+{% endblock %}
+
+{% block scripts %}
+  {{ super() }}
+  <script>
+    // Show warning banner if not viewing stable documentation
+    document.addEventListener("DOMContentLoaded", function() {
+      const currentURL = window.location.href;
+      const warningDiv = document.getElementById("version-warning");
+
+      // Check if we're on the stable docs or the redirect page
+      if (currentURL.includes('agent-lightning/latest/')) {
+        // Show warning for explicitly latest docs
+        warningDiv.style.display = "block";
+      }
+    });
+  </script>
+{% endblock %}

docs/overrides/partials/content.html

@@ -0,0 +1,27 @@
+<!-- Copied and modified from https://github.com/squidfunk/mkdocs-material/blob/master/src/templates/partials/content.html -->
+
+<!-- Tags -->
+{% include "partials/tags.html" %}
+
+<!-- Actions -->
+{% include "partials/actions.html" %}
+
+<!--
+  Hack: check whether the content contains a h1 headline. If it doesn't, the
+  page title (or respectively site name) is used as the main headline.
+-->
+{% if "\u003ch1" not in page.content %}
+  <h1>{{ page.title | d(config.site_name, true)}}</h1>
+{% endif %}
+
+<!-- Source file information -->
+{% include "partials/source-file.html" %}
+
+<!-- Page content -->
+{{ page.content }}
+
+<!-- Was this page helpful? -->
+{% include "partials/feedback.html" %}
+
+<!-- Comment system -->
+{% include "partials/comments.html" %}