Isolate CTP in worker process and improve strategy roll UX.

Split vn.py into qihuo-ctp worker with IPC client bridge, keep CTP connected during breaks with cached account fallback, speed up strategy page loads, and allow off-session breakout roll submissions.

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

scripts/_check_ctp_worker_health.py

@@ -0,0 +1,46 @@
+"""Check qihuo web CTP status and qihuo-ctp worker health."""
+from __future__ import annotations
+
+import sys
+
+import paramiko
+
+sys.stdout.reconfigure(encoding="utf-8", errors="replace")
+
+c = paramiko.SSHClient()
+c.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+c.connect("192.168.8.21", username="root", password="woaini88", timeout=15)
+cmds = [
+    'curl -s --max-time 8 -H "X-Qihuo-CTP-Token: qihuo-local-ctp" http://127.0.0.1:6601/health',
+    r'''python3 - <<'PY'
+import http.cookiejar, json, sqlite3, urllib.parse, urllib.request
+conn = sqlite3.connect("/opt/qihuo/futures.db")
+row = conn.execute("SELECT value FROM settings WHERE key='admin_username'").fetchone()
+conn.close()
+user = row[0] if row else "admin"
+pw = ""
+for line in open("/opt/qihuo/.env", encoding="utf-8-sig", errors="replace"):
+    if line.startswith("ADMIN_PASSWORD="):
+        pw = line.split("=", 1)[1].strip().strip('"').strip("'")
+jar = http.cookiejar.CookieJar()
+op = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(jar))
+op.open(urllib.request.Request(
+    "http://127.0.0.1:6600/login",
+    urllib.parse.urlencode({"username": user, "password": pw}).encode(),
+), timeout=8)
+raw = op.open("http://127.0.0.1:6600/api/ctp/status", timeout=8).read()
+print(raw.decode("utf-8", "replace")[:2000])
+PY''',
+    "pm2 jlist | python3 -c \"import sys,json; rows=json.load(sys.stdin); print([(r.get('name'), (r.get('pm2_env') or {}).get('status'), (r.get('pm2_env') or {}).get('restart_time')) for r in rows if r.get('name') in ('qihuo','qihuo-ctp')])\"",
+]
+try:
+    for cmd in cmds:
+        print("===", cmd)
+        _, o, e = c.exec_command(cmd, timeout=30)
+        out = o.read().decode("utf-8", "replace")
+        err = e.read().decode("utf-8", "replace")
+        print(out[:3000])
+        if err.strip():
+            print("ERR:", err[:1000])
+finally:
+    c.close()