fix: ensure_merchant_roles 热路径快速返回 + gunicorn 6 workers 缓解排队

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

deploy/apply-lag-fix.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+# 部署卡顿修复并验证 rt=
+set -e
+DJANGO_DIR="/opt/1panel/apps/openresty/nginx/www/sites/43.142.166.152.443/django"
+NGINX_LOG="/opt/1panel/apps/openresty/nginx/log/access.log"
+cd "$DJANGO_DIR"
+
+echo ">>> git pull"
+git pull origin main
+
+echo ">>> 更新 systemd (6 workers)"
+cp deploy/systemd/gunicorn-dianjing.service /etc/systemd/system/gunicorn-dianjing.service
+systemctl daemon-reload
+systemctl restart gunicorn-dianjing.service
+sleep 2
+systemctl is-active gunicorn-dianjing.service
+pgrep -cf 'gunicorn.*a_long_dianjing' || true
+
+echo ""
+echo ">>> 最近慢请求 (rt>=0.5s):"
+grep -a 'hqhd' "$NGINX_LOG" | awk 'match($0,/rt=([0-9.]+)/,a){if(a[1]+0>=0.5)print}' | tail -5
+
+echo ""
+echo ">>> 最近 dddhq / merchant-staff/me:"
+grep -a 'hqhd' "$NGINX_LOG" | grep -E 'ddhq|merchant-staff/me' | tail -8 | awk 'match($0,/rt=([0-9.]+)/,a){rt=a[1]} match($0,/POST ([^ ]+)/,b){print "  rt="rt"s  "b[1]}'
+
+echo ""
+echo "部署完成。请用手机再试，然后看上面 rt 是否都 <0.2s"