docs: call out PR checks and hosted MCP on the overview (#1349)

Claude-Session: https://claude.ai/code/session_01KeLbkgeThB6v2Fgwi1R16c

Co-authored-by: Claude <noreply@anthropic.com>

Author: zachdunn

apps/web/src/pages/docs.astro

@@ -27,12 +27,21 @@ const REPO = "https://github.com/buildinternet/uploads";
       stable public URL the moment it's captured. When the pull request opens, every artifact
       appears in one tidy comment that updates automatically on each revision.
     </p>
-    <p>With the uploads CLI you can:</p>
+    <p>With uploads you can:</p>
     <ul>
       <li>
         <a href="/docs/attach-pull-request-images">Attach screenshots, video, and other files</a> to a
         GitHub PR, issue, or code review — kept in one managed comment.
       </li>
+      <li>
+        <a href="/docs/require-screenshots">Add screenshots to your pull request checks</a>. The
+        Check for visuals check sits next to your tests and can require screenshots on UI changes.
+      </li>
+      <li>
+        Let cloud coding agents in sandboxes upload proof their feature works through the <a
+          href="/docs/mcp#cloud-sandboxes">hosted MCP server</a
+        >, straight to the open pull request, with no CLI to install.
+      </li>
       <li>
         <a href="/docs/capture">Capture and annotate</a> a screenshot of a page in one step.
       </li>