feat期权链与持仓展示 Delta。

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

lib/exchange/okx_options_lib.py

@@ -884,6 +884,10 @@ def build_option_chain(
         mark = q["mark_px"]
         ask_sz = q["ask_sz"]
         bid_sz = q["bid_sz"]
+        # 行情 ticker:delta;兼容个别字段名
+        delta = _safe_float(t.get("delta"))
+        if delta is None:
+            delta = _safe_float(t.get("deltaBS"))
         expiry_be = expiry_breakeven_from_ask(
             opt_type=opt_type,
             strike=strike,
@@ -904,6 +908,7 @@ def build_option_chain(
                 "ask_sz": ask_sz,
                 "bid_sz": bid_sz,
                 "mark_px": mark,
+                "delta": delta,
                 "ask_estimated": q["ask_estimated"],
                 "expiry_be_px": expiry_be,
                 "dist_expiry_be": strike_distance_to_be(strike, expiry_be),
@@ -1843,6 +1848,9 @@ def format_position_row(
         round(total_premium(avg, eth_amount), 8) if avg is not None and eth_amount > 0 else None
     )
     delta_pa = _safe_float(pos.get("deltaPA"))
+    delta_bs = _safe_float(pos.get("deltaBS"))
+    if delta_bs is None:
+        delta_bs = _safe_float(pos.get("delta"))
     try:
         from lib.options.options_margin_mode_lib import margin_mode_from_inst_id
 
@@ -1909,6 +1917,10 @@ def format_position_row(
             total_premium=premium_paid,
             margin_mode=row_mode,
         ),
+        # 展示用单位 Delta(BS);delta_pa 为仓位美元敏感度
+        "delta": delta_bs,
+        "delta_bs": delta_bs,
+        "delta_pa": delta_pa,
         "raw": pos,
     }