DOCS-1: Init document work

nginx.conf

@@ -0,0 +1,49 @@
+server {
+    listen 80;
+    server_name _;
+
+    # ------------------------------------------------------------------
+    # HTTPS redirect — uncomment after running certbot:
+    #   listen 443 ssl http2;
+    #   ssl_certificate     /etc/letsencrypt/live/docs.arcline.it/fullchain.pem;
+    #   ssl_certificate_key /etc/letsencrypt/live/docs.arcline.it/privkey.pem;
+    #   include             /etc/letsencrypt/options-ssl-nginx.conf;
+    #   add_header Strict-Transport-Security "max-age=63072000" always;
+    #
+    # And add a redirect block:
+    #   server { listen 80; server_name _; return 301 https://$host$request_uri; }
+    # ------------------------------------------------------------------
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # Custom 404
+    error_page 404 /404.html;
+
+    # robots.txt at root
+    location = /robots.txt {
+        try_files /robots.txt =404;
+    }
+
+    # Clean URLs: /section/page/ → /section/page/index.html
+    location / {
+        try_files $uri $uri/ $uri/index.html =404;
+    }
+
+    # Security headers
+    add_header X-Frame-Options        "SAMEORIGIN" always;
+    add_header X-Content-Type-Options "nosniff"    always;
+    add_header Referrer-Policy        "strict-origin-when-cross-origin" always;
+
+    # Cache static assets aggressively
+    location ~* \.(css|js|woff2?|ttf|otf|svg|png|ico|webp|jpg)$ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+    }
+
+    # Never cache HTML, JSON, or XML
+    location ~* \.(html|json|xml)$ {
+        expires -1;
+        add_header Cache-Control "no-cache";
+    }
+}