fix(options): expose chain DTE in env UI and show nearest expiries for OO

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

lib/hedge_plan/hedge_plan_register.py

@@ -677,17 +677,25 @@ def register_hedge_plan_routes(app: Flask, cfg: dict[str, Any]) -> None:
         if ex is None:
             return jsonify({"ok": False, "msg": "期权交易所未初始化"}), 400
         u = (request.args.get("underlying") or cfg.get("default_underly") or "ETH").upper()
+        # 热更新:链展示天数每次读 env
+        chain_max_dte = float(
+            os.getenv("OKX_OPTIONS_CHAIN_MAX_DTE_DAYS")
+            or os.getenv("OKX_OPTIONS_MAX_DTE_DAYS")
+            or cfg.get("chain_max_dte")
+            or 14
+        )
         try:
             chain = cfg["build_option_chain"](
                 ex,
                 u,
-                max_dte_days=float(cfg.get("chain_max_dte") or 14),
+                max_dte_days=chain_max_dte,
                 itm_only=False,
                 itm_max_dist_usd=float(os.getenv("OKX_OPTIONS_ITM_MAX_DIST_USD") or "30"),
             )
         except Exception as e:
             return jsonify({"ok": False, "msg": f"拉取期权链失败: {e}"}), 500
-        # 以期权为主:可选最短剩余小时 / 行权间隔过滤(也回写 hours_to_expiry 供前端)
+        # 可选:永期以期权为主时按最低剩余小时/行权间隔过滤(仅当请求显式带 option_primary)
+        # 默认拉链不再带此过滤,避免期期看不到明天到期
         option_primary = (request.args.get("option_primary") or "").strip().lower() in (
             "1",
             "true",
@@ -744,7 +752,7 @@ def register_hedge_plan_routes(app: Flask, cfg: dict[str, Any]) -> None:
                 "ok": True,
                 **chain,
                 "underlying": u,
-                "chain_max_dte_days": cfg.get("chain_max_dte"),
+                "chain_max_dte_days": chain_max_dte,
                 "account_kind": "options",
                 "account_label": cfg.get("options_account_label") or "期权账户",
                 "account_note": "期权腿使用期权账户(交易 USDC)",

lib/hedge_plan/templates/hedge_plan_panel.html

@@ -406,4 +406,4 @@
     </div>
   </div>
 </div>
-<script src="/static/hedge_plan.js?v=45"></script>
+<script src="/static/hedge_plan.js?v=46"></script>