chore(env): WEB_PORT 统一回退为 5173 并烟雾检查改为可开关

- .env.example/docker-compose(.full).yml WEB_PORT 默认值 5273→5173（Vite 默认），CORS_ORIGINS 同步
- docker-compose 注入 WEB_PORT/SERVER_PORT 环境变量，健康检查端口随之更新
- start.sh 新增 SERVER_SMOKE_CHECK_ENABLED 开关，默认关闭烟雾检查，仅健康探测
- web/web_start.sh 适配端口
- .gitignore 补充忽略 tmp/ 运行时目录

start.sh

@@ -109,6 +109,7 @@ if [ "$ENV_OVERRIDE_ONLYOFFICE_JWT_SECRET_SET" = true ]; then
 fi
 
 SERVER_STARTUP_TIMEOUT="${SERVER_STARTUP_TIMEOUT:-300}"
+SERVER_SMOKE_CHECK_ENABLED="${SERVER_SMOKE_CHECK_ENABLED:-false}"
 SETUP_COMPLETED="${SETUP_COMPLETED:-false}"
 APP_DEBUG="${APP_DEBUG:-true}"
 APP_ENV="${APP_ENV:-local}"
@@ -220,7 +221,16 @@ probe_server_ready() {
   _health_url="${1:-$(server_probe_url)}"
   _smoke_url="${2:-$(server_smoke_url)}"
 
-  probe_server_health "$_health_url" && probe_server_smoke "$_smoke_url"
+  probe_server_health "$_health_url" || return 1
+
+  case "$SERVER_SMOKE_CHECK_ENABLED" in
+    1|true|TRUE|yes|YES|on|ON)
+      probe_server_smoke "$_smoke_url"
+      return $?
+      ;;
+  esac
+
+  return 0
 }
 
 prepare_web() {