Show OKX option Delta on hedge plan strike picker.

Surface ticker delta (gamma in tooltip) in the chain table and selected premium line for easier ITM selection.

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

lib/exchange/okx_options_lib.py

@@ -285,6 +285,9 @@ def _resolve_chain_quote(
     if ask_estimated:
         ask_sz = None
 
+    # OKX 期权 ticker 自带希腊字母(选约用);缺省时前端显示 —
+    delta = _safe_float(ticker.get("delta") or ticker.get("deltaBS"))
+    gamma = _safe_float(ticker.get("gamma") or ticker.get("gammaBS"))
     return {
         "ask": ask,
         "bid": bid,
@@ -292,6 +295,8 @@ def _resolve_chain_quote(
         "bid_sz": bid_sz,
         "mark_px": mark,
         "ask_estimated": ask_estimated,
+        "delta": delta,
+        "gamma": gamma,
     }
 
 
@@ -945,6 +950,8 @@ def build_option_chain(
                 "bid_sz": bid_sz,
                 "mark_px": mark,
                 "ask_estimated": q["ask_estimated"],
+                "delta": q.get("delta"),
+                "gamma": q.get("gamma"),
                 "expiry_be_px": expiry_be,
                 "dist_expiry_be": strike_distance_to_be(strike, expiry_be, opt_type=opt_type),
                 "moneyness": mny,