Fix broken links and add redirects for common documentation paths

Author: cursoragent

redirects.js

@@ -346,6 +346,40 @@ const userDocsRedirects = [
     source: '/product/sentry-basics/concepts/:path*',
     destination: '/concepts/key-terms/:path*',
   },
+  // Fix broken links reported in GitHub issue #13956
+  {
+    source: '/product/sentry-basics/tracing/distributed-tracing/:path*',
+    destination: '/product/sentry-basics/distributed-tracing/:path*',
+  },
+  {
+    source: '/product/sentry-basics/tracing/',
+    destination: '/product/sentry-basics/distributed-tracing/',
+  },
+  {
+    source: '/product/sentry-basics/dsn-explainer/:path*',
+    destination: '/concepts/key-terms/dsn-explainer/:path*',
+  },
+  {
+    source: '/product/sentry-basics/environments/:path*',
+    destination: '/concepts/key-terms/environments/:path*',
+  },
+  {
+    source: '/product/sentry-basics/enrich-data/:path*',
+    destination: '/concepts/key-terms/enrich-data/:path*',
+  },
+  // Additional redirects for common patterns found in 404 errors
+  {
+    source: '/guides/integrate-backend/:path*',
+    destination: '/product/sentry-basics/integrate-backend/:path*',
+  },
+  {
+    source: '/guides/integrate-frontend/:path*',
+    destination: '/product/sentry-basics/integrate-frontend/:path*',
+  },
+  {
+    source: '/data-management-settings/event-pii-fields/:path*',
+    destination: '/concepts/data-management/event-pii-fields/:path*',
+  },
   {
     source: '/security-legal-pii/security/ai-ml-policy/',
     destination: '/security-legal-pii/security/service-data-usage/',