feat(config): 更新环境配置和Nginx设置以支持动态端口配置

- 修改 .env.example 文件中的客户端API基础路径配置
- 将Dockerfile中的nginx.conf复制到模板目录以支持环境变量
- 在nginx配置中使用环境变量替换硬编码端口
- 为API文档路径(/docs、/redoc、/openapi.json)添加代理配置
- 移除硬编码的服务器地址，改用相对路径配置
- 更新docker-compose.yml以传递内部端口环境变量
- 简化nginx反向代理配置，移除冗余的服务器块配置

clients/nginx.conf

@@ -1,12 +1,12 @@
 server {
-  listen 80;
+  listen ${CLIENTS_INTERNAL_PORT};
   server_name _;
 
   root /usr/share/nginx/html;
   index index.html;
 
   location /api/ {
-    proxy_pass http://server:8000/api/;
+    proxy_pass http://server:${SERVER_INTERNAL_PORT}/api/;
     proxy_http_version 1.1;
     proxy_set_header Host $host;
     proxy_set_header X-Real-IP $remote_addr;
@@ -15,11 +15,38 @@ server {
   }
 
   location /uploads/ {
-    proxy_pass http://server:8000/uploads/;
+    proxy_pass http://server:${SERVER_INTERNAL_PORT}/uploads/;
     proxy_http_version 1.1;
     proxy_set_header Host $host;
   }
 
+  location = /docs {
+    proxy_pass http://server:${SERVER_INTERNAL_PORT}/docs;
+    proxy_http_version 1.1;
+    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 $scheme;
+  }
+
+  location = /redoc {
+    proxy_pass http://server:${SERVER_INTERNAL_PORT}/redoc;
+    proxy_http_version 1.1;
+    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 $scheme;
+  }
+
+  location = /openapi.json {
+    proxy_pass http://server:${SERVER_INTERNAL_PORT}/openapi.json;
+    proxy_http_version 1.1;
+    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;
+  }
+
   location / {
     try_files $uri $uri/ /index.html;
   }