Wire admin studio SSR and search infrastructure

deploy/nginx/upstream-error-pages.conf

@@ -0,0 +1,30 @@
+# ---------------------------------------------------------------------------
+# Nginx upstream / gateway error pages for Skinbase Nova
+# ---------------------------------------------------------------------------
+# Purpose:
+#   Serve a Nova-styled static HTML page for nginx-level upstream failures such
+#   as 502 Bad Gateway and 504 Gateway Timeout. These responses happen before
+#   Laravel can render Blade error views, so they must be handled by nginx.
+#
+# Setup:
+#   1. Include this file inside the `server {}` block for the Skinbase site.
+#   2. Enable `fastcgi_intercept_errors on;` inside every FastCGI location that
+#      should use these pages (at minimum `location = /index.php` and any other
+#      direct `fastcgi_pass` location such as upload endpoints).
+#   3. Ensure the static file exists at:
+#        public/errors/upstream-gateway.html
+#
+# This snippet intentionally intercepts only upstream failures. Keep Laravel in
+# control of normal application errors such as 404, 419, 429, and 500.
+# ---------------------------------------------------------------------------
+
+error_page 502 504 /errors/upstream-gateway.html;
+
+location = /errors/upstream-gateway.html {
+    internal;
+
+    try_files /errors/upstream-gateway.html =502;
+
+    add_header Cache-Control "no-store, no-cache, must-revalidate" always;
+    add_header Content-Type  "text/html; charset=UTF-8" always;
+}