fix: add regex capture group for deck name in nginx config

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

nginx.conf

@@ -4,7 +4,20 @@ server {
     root /usr/share/nginx/html;
     index index.html;
 
+    # Landing page
+    location = / {
+        try_files /index.html =404;
+    }
+
+    # Deck paths: /resume/, /resume/1, /demo/assets/style.css, etc.
+    # For /resume/1: $uri (no file) → $uri/ (no dir) → fallback to /resume/index.html
+    # For /demo/assets/style.css: $uri (real file) → served directly
+    location ~ ^/([^/]+)/ {
+        try_files $uri $uri/ /$1/index.html =404;
+    }
+
+    # /resume (no trailing slash) → 301 redirect to /resume/
     location / {
-        try_files $uri $uri/ $uri/index.html /index.html;
+        try_files $uri $uri/ =404;
     }
 }