fix(minio): use HTTP-only nginx config for initial install

Remove SSL configuration from nginx config file. SSL will be added
automatically by certbot when running ./install.sh --ssl

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/infrastructure/minio/nginx/minio.szaiai.com.conf

@@ -1,20 +1,17 @@
 # =============================================================================
-# MinIO Nginx 配置
+# MinIO Nginx 配置 (HTTP 版本)
 # =============================================================================
 #
 # 功能:
 #   - MinIO API 反向代理 (S3 兼容)
 #   - MinIO Console 反向代理
-#   - SSL/TLS 终止
 #   - 静态资源 CDN 缓存
 #
-# 安装:
+# 安装步骤:
-#   sudo cp minio.szaiai.com.conf /etc/nginx/sites-available/
+#   1. sudo ./install.sh          # 安装此配置
-#   sudo ln -s /etc/nginx/sites-available/minio.szaiai.com.conf /etc/nginx/sites-enabled/
+#   2. sudo ./install.sh --ssl    # 使用 certbot 添加 SSL (可选)
-#   sudo nginx -t && sudo systemctl reload nginx
 #
-# SSL 证书 (使用 certbot):
+# 注意: SSL 配置将由 certbot 自动添加到此文件
-#   sudo certbot --nginx -d minio.szaiai.com -d cdn.szaiai.com
 #
 # =============================================================================
 
@@ -37,23 +34,6 @@ server {
     listen [::]:80;
     server_name minio.szaiai.com;
 
-    # 强制 HTTPS
-    location / {
-        return 301 https://$host$request_uri;
-    }
-}
-
-server {
-    listen 443 ssl http2;
-    listen [::]:443 ssl http2;
-    server_name minio.szaiai.com;
-
-    # SSL 配置 (由 certbot 管理)
-    ssl_certificate /etc/letsencrypt/live/minio.szaiai.com/fullchain.pem;
-    ssl_certificate_key /etc/letsencrypt/live/minio.szaiai.com/privkey.pem;
-    include /etc/letsencrypt/options-ssl-nginx.conf;
-    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
-
     # 日志
     access_log /var/log/nginx/minio.szaiai.com.access.log;
     error_log /var/log/nginx/minio.szaiai.com.error.log;
@@ -90,7 +70,7 @@ server {
         proxy_send_timeout 300s;
         proxy_read_timeout 300s;
 
-        # WebSocket 支持 (用于控制台实时日志)
+        # WebSocket 支持
         proxy_set_header Upgrade $http_upgrade;
         proxy_set_header Connection "upgrade";
     }
@@ -104,22 +84,6 @@ server {
     listen [::]:80;
     server_name console.minio.szaiai.com;
 
-    location / {
-        return 301 https://$host$request_uri;
-    }
-}
-
-server {
-    listen 443 ssl http2;
-    listen [::]:443 ssl http2;
-    server_name console.minio.szaiai.com;
-
-    # SSL 配置
-    ssl_certificate /etc/letsencrypt/live/minio.szaiai.com/fullchain.pem;
-    ssl_certificate_key /etc/letsencrypt/live/minio.szaiai.com/privkey.pem;
-    include /etc/letsencrypt/options-ssl-nginx.conf;
-    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
-
     # 日志
     access_log /var/log/nginx/console.minio.access.log;
     error_log /var/log/nginx/console.minio.error.log;
@@ -155,44 +119,17 @@ server {
     listen [::]:80;
     server_name cdn.szaiai.com;
 
-    location / {
-        return 301 https://$host$request_uri;
-    }
-}
-
-server {
-    listen 443 ssl http2;
-    listen [::]:443 ssl http2;
-    server_name cdn.szaiai.com;
-
-    # SSL 配置
-    ssl_certificate /etc/letsencrypt/live/cdn.szaiai.com/fullchain.pem;
-    ssl_certificate_key /etc/letsencrypt/live/cdn.szaiai.com/privkey.pem;
-    include /etc/letsencrypt/options-ssl-nginx.conf;
-    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
-
     # 日志
     access_log /var/log/nginx/cdn.szaiai.com.access.log;
     error_log /var/log/nginx/cdn.szaiai.com.error.log;
 
-    # 缓存配置
-    proxy_cache_path /var/cache/nginx/minio levels=1:2 keys_zone=minio_cache:100m max_size=10g inactive=7d use_temp_path=off;
-
     # 公开存储桶 - avatars
     location /avatars/ {
         proxy_pass http://minio_api/avatars/;
         proxy_http_version 1.1;
         proxy_set_header Connection "";
 
-        # 缓存配置
-        proxy_cache minio_cache;
-        proxy_cache_valid 200 7d;
-        proxy_cache_valid 404 1m;
-        proxy_cache_use_stale error timeout updating http_500 http_502 http_503 http_504;
-        proxy_cache_lock on;
-
         # 缓存头部
-        add_header X-Cache-Status $upstream_cache_status;
         add_header Cache-Control "public, max-age=604800";
 
         # CORS 配置
@@ -206,15 +143,7 @@ server {
         proxy_http_version 1.1;
         proxy_set_header Connection "";
 
-        # 缓存配置
-        proxy_cache minio_cache;
-        proxy_cache_valid 200 7d;
-        proxy_cache_valid 404 1m;
-        proxy_cache_use_stale error timeout updating http_500 http_502 http_503 http_504;
-        proxy_cache_lock on;
-
         # 缓存头部
-        add_header X-Cache-Status $upstream_cache_status;
         add_header Cache-Control "public, max-age=604800";
 
         # CORS 配置