feat: add /latest/* redirect to strip legacy URL prefix

All old docs.seam.co/latest/* links now redirect to /* on the new site.

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

Author: dawnho

mintlify-docs/docs.json

@@ -986,5 +986,11 @@
   },
   "api": {
     "baseUrl": "https://connect.getseam.com"
-  }
+  },
+  "redirects": [
+    {
+      "source": "/latest/:slug*",
+      "destination": "/:slug*"
+    }
+  ]
 }