feat(crypto-tail): 尾盘策略完整实现与优化

- 尾盘策略 CRUD、订单簿 WS 订阅、周期内触发下单
- 订单簿订阅日志增加市场 slug，便于排查
- 移除轮询，完全依赖 WebSocket（删除 CryptoTailStrategyScheduler）
- FIXED 模式数量改为小数、向上取整，与签名服务一致
- 前端策略列表页、多语言与 API 对接

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

scripts/fetch_crypto_minute_markets.py

@@ -0,0 +1,98 @@
+#!/usr/bin/env python3
+"""
+获取 Polymarket 5/15 分钟加密市场数据（开始时间、结束时间、conditionId）。
+使用 Gamma API: https://gamma-api.polymarket.com
+验证方式: python3 scripts/fetch_crypto_minute_markets.py
+"""
+import json
+import time
+import urllib.request
+from datetime import datetime, timezone
+
+GAMMA_BASE = "https://gamma-api.polymarket.com"
+
+
+def fetch_event_by_slug(slug: str) -> dict | None:
+    url = f"{GAMMA_BASE}/events/slug/{slug}"
+    req = urllib.request.Request(url, headers={"User-Agent": "PolymarketBot/1.0 (script)"})
+    try:
+        with urllib.request.urlopen(req, timeout=10) as resp:
+            return json.load(resp)
+    except urllib.error.HTTPError as e:
+        if e.code == 404:
+            return None
+        raise
+    except Exception as e:
+        print(f"Request error {url}: {e}")
+        return None
+
+
+def parse_iso_to_ms(iso: str | None) -> int | None:
+    if not iso:
+        return None
+    try:
+        # ISO 可能带 Z 或 +00:00
+        if iso.endswith("Z"):
+            iso = iso.replace("Z", "+00:00")
+        dt = datetime.fromisoformat(iso.replace("Z", "+00:00"))
+        return int(dt.timestamp() * 1000)
+    except Exception:
+        return None
+
+
+def main():
+    now = int(time.time())
+    # 5 分钟周期边界 (300s)
+    period_5m = (now // 300) * 300
+    next_5m = period_5m + 300
+    # 15 分钟周期边界 (900s)；slug 可能用结束时间，这里试起点
+    period_15m = (now // 900) * 900
+    next_15m = period_15m + 900
+
+    print("=== 5 minute markets (BTC) ===")
+    for ts, label in [(period_5m, "current"), (next_5m, "next")]:
+        slug = f"btc-updown-5m-{ts}"
+        ev = fetch_event_by_slug(slug)
+        if ev and ev.get("slug"):
+            start = ev.get("startDate")
+            end = ev.get("endDate")
+            print(f"  [{label}] slug={slug}")
+            print(f"    title: {ev.get('title', '')[:70]}")
+            print(f"    startDate: {start}  endDate: {end}")
+            markets = ev.get("markets") or []
+            for m in markets[:1]:
+                cid = m.get("conditionId")
+                print(f"    conditionId: {cid}")
+                print(f"    question: {(m.get('question') or '')[:60]}")
+                # clobTokenIds 用于订单簿
+                tokens = m.get("clobTokenIds")
+                if tokens:
+                    try:
+                        ids = json.loads(tokens) if isinstance(tokens, str) else tokens
+                        print(f"    clobTokenIds: {ids[:2]}..." if len(ids) > 2 else f"    clobTokenIds: {ids}")
+                    except Exception:
+                        print(f"    clobTokenIds: {tokens[:80]}...")
+        else:
+            print(f"  [{label}] slug={slug} -> not found (404 or empty)")
+
+    print("\n=== 15 minute markets (BTC) ===")
+    for ts, label in [(period_15m, "current"), (next_15m, "next")]:
+        slug = f"btc-updown-15m-{ts}"
+        ev = fetch_event_by_slug(slug)
+        if ev and ev.get("slug"):
+            print(f"  [{label}] slug={slug}")
+            print(f"    title: {ev.get('title', '')[:70]}")
+            print(f"    startDate: {ev.get('startDate')}  endDate: {ev.get('endDate')}")
+            for m in (ev.get("markets") or [])[:1]:
+                print(f"    conditionId: {m.get('conditionId')}")
+        else:
+            print(f"  [{label}] slug={slug} -> not found")
+
+    print("\n=== Summary ===")
+    print("5m: slug btc-updown-5m-{periodStartUnix}, periodStartUnix = (now // 300) * 300; period end = endDate.")
+    print("15m: slug btc-updown-15m-{periodStartUnix}, periodStartUnix = (now // 900) * 900; period end = endDate.")
+    print("Period start = slug timestamp; period end = API endDate (do not use startDate as period start).")
+
+
+if __name__ == "__main__":
+    main()