Implement three divination modes, learn pages, and PM2 deploy on port 3130.

Add liuyao/bazi/combined flows with shared calc and AI infrastructure, 64-gua learn routes, and update Ubuntu PM2 deployment docs for port 3130.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/deploy.sh

@@ -1,11 +1,12 @@
 #!/usr/bin/env bash
-# 知命阁（zhimingge）服务器更新脚本
+# 知命阁（zhimingge）Ubuntu 服务器更新脚本
 # 用法：cd /opt/zhimingge && bash scripts/deploy.sh
 
 set -euo pipefail
 
 APP_DIR="/opt/zhimingge"
 APP_NAME="zhimingge"
+APP_PORT="${PORT:-3130}"
 
 cd "$APP_DIR"
 
@@ -22,8 +23,14 @@ echo "==> 确保日志目录存在..."
 mkdir -p logs
 
 echo "==> 重启 PM2..."
-pm2 restart "$APP_NAME" || pm2 start ecosystem.config.cjs
+if pm2 describe "$APP_NAME" > /dev/null 2>&1; then
+  pm2 restart "$APP_NAME"
+else
+  pm2 start ecosystem.config.cjs
+fi
 
-echo "==> 部署完成"
+pm2 save
+
+echo "==> 部署完成，验证 http://127.0.0.1:${APP_PORT} ..."
 pm2 status "$APP_NAME"
-curl -s -o /dev/null -w "HTTP %{http_code}\n" http://127.0.0.1:3000 || true
+curl -s -o /dev/null -w "HTTP %{http_code}\n" "http://127.0.0.1:${APP_PORT}" || true