refactor(nginx): relocate templates to templates/ and harden proxy configuration

- Unify unix socket path to %docroot%/gunicorn.sock

- Add ^~ priority modifier for /static/ and /media/ locations

- Add complete proxy headers including X-Forwarded-Proto for CSRF compatibility

- Clean up root directory by placing templates in dedicated templates/ folder

templates/django-gunicorn.stpl

@@ -1,6 +1,9 @@
 #=========================================================================#
-# Django + Gunicorn Socket SSL Template for HestiaCP
+# Django + Gunicorn Socket SSL Template for HestiaCP  (HTTPS)
+# Auto-generated by hestia-django-gunicorn deployment engine
+# Socket path: %docroot%/gunicorn.sock
 #=========================================================================#
+
 server {
     listen      %ip%:%proxy_ssl_port% ssl http2;
     server_name %domain_idn% %alias_idn%;
@@ -17,38 +20,55 @@ server {
     access_log  /var/log/%web_system%/domains/%domain%.bytes bytes;
     error_log   /var/log/%web_system%/domains/%domain%.error.log error;
 
+    # Block access to hidden files (except .well-known for ACME)
     location ~ /\.(?!well-known\/) {
         deny all;
         return 404;
     }
 
+    # Static files — priority match prevents regex collision
+    location ^~ /static/ {
+        alias %docroot%/staticfiles/;
+        try_files $uri %docroot%/static/$uri =404;
+        expires 30d;
+        access_log off;
+        add_header Cache-Control "public, immutable";
+    }
+
+    # Media files (user uploads)
+    location ^~ /media/ {
+        alias %docroot%/media/;
+        expires 30d;
+        access_log off;
+        add_header Cache-Control "public";
+    }
+
+    # Proxy known static extensions directly (HestiaCP convention)
+    location ~* ^.+\.(%proxy_extensions%)$ {
+        try_files $uri @fallback;
+        root %docroot%;
+        expires max;
+        access_log off;
+    }
+
+    # Fallback to Gunicorn for unresolved static extension requests
+    location @fallback {
+        proxy_pass http://unix:%docroot%/gunicorn.sock;
+    }
+
+    # Main application — reverse proxy to Gunicorn unix socket
     location / {
-        proxy_pass http://unix:/home/%user%/web/%domain%/gunicorn.sock;
+        proxy_pass http://unix:%docroot%/gunicorn.sock;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header X-Forwarded-Proto https;
         proxy_set_header X-Forwarded-Host $host;
-    }
+        proxy_redirect off;
 
-    location ~* ^.+\.(%proxy_extensions%)$ {
-        try_files $uri @fallback;
-        root %sdocroot%;
-        expires max;
-    }
-
-    location @fallback {
-        proxy_pass http://unix:/home/%user%/web/%domain%/gunicorn.sock;
-    }
-
-    location /static/ {
-        alias %docroot%/static/;
-        expires 30d;
-    }
-
-    location /media/ {
-        alias %docroot%/media/;
-        expires 30d;
+        # Timeouts for long-running requests
+        proxy_connect_timeout 300s;
+        proxy_read_timeout 300s;
     }
 
     include %home%/%user%/conf/web/%domain%/nginx.hsts.conf*;

templates/django-gunicorn.tpl

@@ -1,5 +1,7 @@
 #=========================================================================#
-# Django + Gunicorn Socket Template for HestiaCP
+# Django + Gunicorn Socket Template for HestiaCP  (HTTP)
+# Auto-generated by hestia-django-gunicorn deployment engine
+# Socket path: %docroot%/gunicorn.sock
 #=========================================================================#
 
 server {
@@ -13,38 +15,55 @@ server {
     access_log  /var/log/%web_system%/domains/%domain%.bytes bytes;
     error_log   /var/log/%web_system%/domains/%domain%.error.log error;
 
+    # Block access to hidden files (except .well-known for ACME)
     location ~ /\.(?!well-known\/) {
         deny all;
         return 404;
     }
 
+    # Static files — priority match prevents regex collision
+    location ^~ /static/ {
+        alias %docroot%/staticfiles/;
+        try_files $uri %docroot%/static/$uri =404;
+        expires 30d;
+        access_log off;
+        add_header Cache-Control "public, immutable";
+    }
+
+    # Media files (user uploads)
+    location ^~ /media/ {
+        alias %docroot%/media/;
+        expires 30d;
+        access_log off;
+        add_header Cache-Control "public";
+    }
+
+    # Proxy known static extensions directly (HestiaCP convention)
+    location ~* ^.+\.(%proxy_extensions%)$ {
+        try_files $uri @fallback;
+        root %docroot%;
+        expires max;
+        access_log off;
+    }
+
+    # Fallback to Gunicorn for unresolved static extension requests
+    location @fallback {
+        proxy_pass http://unix:%docroot%/gunicorn.sock;
+    }
+
+    # Main application — reverse proxy to Gunicorn unix socket
     location / {
-        proxy_pass http://unix:/home/%user%/web/%domain%/gunicorn.sock;
+        proxy_pass http://unix:%docroot%/gunicorn.sock;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header X-Forwarded-Proto $scheme;
         proxy_set_header X-Forwarded-Host $host;
-    }
+        proxy_redirect off;
 
-    location ~* ^.+\.(%proxy_extensions%)$ {
-        try_files $uri @fallback;
-        root %sdocroot%;
-        expires max;
-    }
-
-    location @fallback {
-        proxy_pass http://unix:/home/%user%/web/%domain%/gunicorn.sock;
-    }
-
-    location /static/ {
-        alias %docroot%/static/;
-        expires 30d;
-    }
-
-    location /media/ {
-        alias %docroot%/media/;
-        expires 30d;
+        # Timeouts for long-running requests
+        proxy_connect_timeout 300s;
+        proxy_read_timeout 300s;
     }
 
     include %home%/%user%/conf/web/%domain%/nginx.conf_*;