refactor(nginx): single www volume with html/ subdirectory

- Removed separate html volume, use /var/www as single web root
- Moved html/ content into www/html/
- Updated default.conf root to /var/www/html
- Allows organizing multiple sites under /var/www (html, mon_site, etc.)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/nginx/data/conf.d/default.conf

@@ -4,7 +4,7 @@ server {
 
     server_name _;
 
-    root /usr/share/nginx/html;
+    root /var/www/html;
     index index.html index.htm;
 
     # Headers de securite
@@ -37,6 +37,6 @@ server {
     error_page 404 /404.html;
     error_page 500 502 503 504 /50x.html;
     location = /50x.html {
-        root /usr/share/nginx/html;
+        root /var/www/html;
     }
 }

apps/nginx/docker-compose.json

@@ -19,10 +19,6 @@
           "hostPath": "${APP_DATA_DIR}/data/www",
           "containerPath": "/var/www"
         },
-        {
-          "hostPath": "${APP_DATA_DIR}/data/html",
-          "containerPath": "/usr/share/nginx/html"
-        },
         {
           "hostPath": "${APP_DATA_DIR}/data/logs",
           "containerPath": "/var/log/nginx"