fix bugs an local

default.conf

@@ -1,34 +1,83 @@
+# Loaded by the standard nginx image inside the http context.
+# TLS is terminated by the existing external reverse proxy (Pangolin).
+map $uri $olapka_canonical_path {
+    # Re-evaluate after internal error_page redirects.
+    volatile;
+    default $uri;
+    ~^/index(?:\.html)?/?$ /;
+    ~^/(business-animation|contacts|legal|personal-animation|portfolio|services|social-animation)(?:\.html/?|/)$ /$1;
+}
+
 server {
     listen 80;
     server_name www.olapka.ru;
-
-    return 301 https://olapka.ru$request_uri;
+    return 301 https://olapka.ru$olapka_canonical_path$is_args$args;
 }
 
 server {
     listen 80;
     server_name olapka.ru;
-
     root /usr/share/nginx/html;
-    index index.html;
+    charset utf-8;
+    charset_types text/plain text/css text/markdown application/javascript application/json application/xml image/svg+xml;
 
-    # Отдельная страница ошибки 404
-    error_page 404 /404.html;
+    gzip on;
+    gzip_vary on;
+    gzip_proxied any;
+    gzip_min_length 512;
+    gzip_comp_level 5;
+    gzip_types text/plain text/css text/markdown application/javascript application/json application/xml text/xml image/svg+xml;
 
-    # Убираем .html из исходных запросов браузера
-    if ($request_uri ~ ^(/[^?]*)\.html(\?.*)?$) {
-        return 301 $1$is_args$args;
+    # /404 is an error too, never a successful content page.
+    location = /404 {
+        return 404;
     }
 
-    location / {
-        try_files $uri $uri.html $uri/ =404;
-    }
+    error_page 404 =404 /404.html;
 
-    # Доступ только для внутренней обработки ошибки
     location = /404.html {
         internal;
     }
-     # Machine-readable site summaries (UTF-8 Markdown in .txt files).
+
+    # Only return redirects here; no rewrite loops or HTTPS checks behind proxy.
+    if ($uri != $olapka_canonical_path) {
+        return 301 https://olapka.ru$olapka_canonical_path$is_args$args;
+    }
+
+    # try_files serves an existing file in-place, without a client redirect.
+    location = / {
+        try_files /index.html =404;
+    }
+
+    location = /business-animation {
+        try_files /business-animation.html =404;
+    }
+
+    location = /contacts {
+        try_files /contacts.html =404;
+    }
+
+    location = /legal {
+        try_files /legal.html =404;
+    }
+
+    location = /personal-animation {
+        try_files /personal-animation.html =404;
+    }
+
+    location = /portfolio {
+        try_files /portfolio.html =404;
+    }
+
+    location = /services {
+        try_files /services.html =404;
+    }
+
+    location = /social-animation {
+        try_files /social-animation.html =404;
+    }
+
+    # Machine-readable site summaries (UTF-8 Markdown in .txt files).
     location ~ ^/llms(?:-full)?\.txt$ {
         types { }
         default_type text/plain;
@@ -55,4 +104,15 @@ server {
         add_header Link '</llms.txt>; rel="describedby"';
         try_files $uri =404;
     }
-}
+
+    # Revalidate changed assets after one hour (filenames are not versioned).
+    location ~ ^/(?:css|js|img|video)/ {
+        add_header Cache-Control "public, max-age=3600";
+        try_files $uri =404;
+    }
+
+    # Real assets are served normally. Unknown URLs return a real 404.
+    location / {
+        try_files $uri =404;
+    }
+}