修复全仓复利开启时单笔预算仍显示：flex 覆盖了 hidden，改为强制隐藏。

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

lib/env/env_ui_manifest.py

@@ -472,6 +472,7 @@ def build_env_ui_payload(
             _build_field(key, label, note, schema, values)
             for key, label, note in sec["fields"]
         ]
+        fields = _mark_compound_budget_hidden(fields)
         groups.append({
             "title": sec["title"],
             "fields": fields,
@@ -480,6 +481,26 @@ def build_env_ui_payload(
     return groups
 
 
+def _mark_compound_budget_hidden(fields: list[dict[str, Any]]) -> list[dict[str, Any]]:
+    """全仓复利开启时标记单笔预算为 hidden(供 SSR/前端隐藏;切换开关仍可再显示)."""
+    compound_on = True
+    for f in fields:
+        if f.get("key") == "OKX_OPTIONS_COMPOUND_FULL_ENABLED":
+            compound_on = _env_truthy(str(f.get("current") or f.get("default") or "true"))
+            break
+    if not compound_on:
+        return fields
+    out: list[dict[str, Any]] = []
+    for f in fields:
+        if f.get("key") == "OKX_OPTIONS_TRADE_BUDGET_USDC":
+            item = dict(f)
+            item["hidden"] = True
+            out.append(item)
+        else:
+            out.append(f)
+    return out
+
+
 def filter_updates_for_ui(exchange_key: str, updates: dict[str, str]) -> dict[str, str]:
     allowed = ui_allowed_keys(exchange_key)
     return {k: v for k, v in (updates or {}).items() if k in allowed}