Add live expiry countdown for options positions on instance page and trading hub.

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

lib/exchange/okx_options_lib.py

@@ -227,6 +227,35 @@ def option_fields_from_inst_id(inst_id: str) -> tuple[str | None, float | None]:
     return opt_type, strike
 
 
+def expiry_ms_from_inst_id(inst_id: str) -> int | None:
+    """从 instId 日期段解析到期时刻（OKX 期权默认 08:00 UTC）。"""
+    parts = (inst_id or "").strip().split("-")
+    if len(parts) < 3:
+        return None
+    date_part = parts[-3]
+    if not re.fullmatch(r"\d{6}", date_part):
+        return None
+    try:
+        from datetime import datetime, timezone
+
+        yy, mm, dd = int(date_part[0:2]), int(date_part[2:4]), int(date_part[4:6])
+        dt = datetime(2000 + yy, mm, dd, 8, 0, 0, tzinfo=timezone.utc)
+        return int(dt.timestamp() * 1000)
+    except (ValueError, OSError):
+        return None
+
+
+def normalize_option_exp_ms(exp_time: Any, inst_id: str = "") -> int | None:
+    """统一期权到期毫秒时间戳（优先 API expTime，否则从 instId 推算）。"""
+    raw = _safe_float(exp_time)
+    if raw is not None and raw > 0:
+        ms = int(raw)
+        if ms < 10_000_000_000:
+            ms *= 1000
+        return ms
+    return expiry_ms_from_inst_id(inst_id)
+
+
 def fetch_option_instrument_meta(ex: ccxt.okx, inst_id: str) -> dict[str, Any] | None:
     family = inst_family_from_inst_id(inst_id)
     if not family:
@@ -839,6 +868,7 @@ def format_position_row(pos: dict[str, Any], ct_mult: float = 0.01) -> dict[str,
         pos=sheets,
         ct_mult=ct_mult,
     )
+    exp_time_ms = normalize_option_exp_ms(pos.get("expTime"), inst_id)
     return {
         "inst_id": inst_id or pos.get("instId"),
         "pos": sheets,
@@ -849,7 +879,8 @@ def format_position_row(pos: dict[str, Any], ct_mult: float = 0.01) -> dict[str,
         "premium_paid": premium_paid,
         "upl": upl,
         "upl_ratio_pct": round(upl_ratio * 100, 2) if upl_ratio is not None else None,
-        "exp_time": pos.get("expTime"),
+        "exp_time": exp_time_ms,
+        "exp_time_ms": exp_time_ms,
         "opt_type": opt_type,
         "strike": strike,
         "avail_pos": _safe_float(pos.get("availPos")),