feat: split logs into human-readable (stdout) and json (file) for better observability

fail2ban/data/jail.d/nginx-modsec.local

@@ -2,7 +2,7 @@
 enabled = true
 port = http,https
 filter = nginx-modsec
-logpath = /var/log/nginx/access.log
+logpath = /var/log/nginx/access_json.log
 maxretry = 3
 bantime = 3600
 findtime = 600

nginx/nginx.conf

@@ -34,9 +34,12 @@ http {
     # Compression (Brotli + Gzip)
     include /etc/nginx/snippets/compression.conf;
 
-    # Logging JSON (Detailed)
+    # Logging JSON (Detailed) - For Fail2Ban / Analysis
     include /etc/nginx/snippets/log_formats.conf;
-    access_log /var/log/nginx/access.log detailed_proxy;
+    access_log /var/log/nginx/access_json.log detailed_proxy;
+    
+    # Logging Human Readable - For Docker Logs / User
+    access_log /dev/stdout combined;
 
     # SSL Settings (Global)
     ssl_session_cache shared:SSL:50m;