fix(docs): correct signup link to app.squaremcp.com, deploy updated image

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docs/docs-k8s.yaml

@@ -15,7 +15,7 @@ spec:
     spec:
       containers:
         - name: squaremcp-docs
-          image: localhost:32000/squaremcp-docs@sha256:adbc221aca3cae4ce42a48d30a69e1745601baa6e425a113f4ae78eed06a5b3a
+          image: localhost:32000/squaremcp-docs@sha256:2e49e8ab602cd5069be89bbba538db06ce9dc2c49064472f399566a8fcc54d9c
           imagePullPolicy: Always
           ports:
             - containerPort: 80

docs/getting-started.html

@@ -31,8 +31,8 @@
   <ol class="steps">
     <li>
       <div>
-        <strong>Sign up at squaremcp.com</strong>
-        Open the <a href="https://squaremcp.com" target="_blank">SquareMCP dashboard</a>, create an account, and verify your email.
+        <strong>Sign up at app.squaremcp.com</strong>
+        Open the <a href="https://app.squaremcp.com" target="_blank">SquareMCP dashboard</a>, create an account, and verify your email.
       </div>
     </li>
     <li>