chore(config): Make Nacos namespace configurable

- Replace hardcoded public namespace with NACOS_NAMESPACE
- Document nacos init container troubleshooting for 1Panel deploy

frontend/video-frontend-admin/deploy/nginx.1panel.conf

@@ -5,6 +5,8 @@ server {
     root /usr/share/nginx/html;
     index index.html;
 
+    resolver 127.0.0.11 valid=10s ipv6=off;
+
     client_max_body_size 1024m;
 
     gzip on;
@@ -15,8 +17,14 @@ server {
         try_files $uri $uri/ /index.html;
     }
 
+    location ~ /\.(?!well-known(?:/|$)) {
+        return 404;
+    }
+
     location /api/admin/ {
-        proxy_pass http://video-gateway:9000/admin/;
+        set $gateway_upstream video-gateway:9000;
+        rewrite ^/api/admin/(.*)$ /admin/$1 break;
+        proxy_pass http://$gateway_upstream;
         proxy_http_version 1.1;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
@@ -28,7 +36,9 @@ server {
     }
 
     location /media/ {
-        proxy_pass http://minio:9000/;
+        set $minio_upstream minio:9000;
+        rewrite ^/media/(.*)$ /$1 break;
+        proxy_pass http://$minio_upstream;
         proxy_http_version 1.1;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;