Add OKX env toggle to show or hide perpetual funds in the header.

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

lib/instance/instance_embed_context_lib.py

@@ -2,6 +2,7 @@
 
 from __future__ import annotations
 
+import os
 from dataclasses import dataclass
 from typing import Any
 
@@ -10,6 +11,20 @@ EMBED_STRATEGY_PAGES = frozenset({"strategy", "strategy_trend", "strategy_roll",
 _WIN_EPS = 1e-9
 
 
+def env_truthy(raw: str | None, default: bool = False) -> bool:
+    if raw is None or str(raw).strip() == "":
+        return default
+    return str(raw).strip().lower() in ("1", "true", "yes", "on")
+
+
+def show_perp_funds_enabled(*, exchange_key: str | None = None) -> bool:
+    """OKX:是否在顶栏显示永续资金账户/交易账户.其他所恒为 True."""
+    ex = (exchange_key or "").strip().lower()
+    if ex and ex != "okx":
+        return True
+    return env_truthy(os.getenv("OKX_SHOW_PERP_FUNDS"), default=True)
+
+
 @dataclass(frozen=True)
 class EmbedRenderPlan:
     exchange_capitals: bool