Fix hub funds overview double-counting OKX USDT with options.

Only add options USDC/USDG onto perpetual USDT totals, repair historical double-counted snapshots, and label the options line as USDC.

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

lib/hub/hub_fund_history_lib.py

@@ -8,7 +8,7 @@ from pathlib import Path
 from typing import Any, Optional
 
 from lib.hub.hub_trades_lib import current_trading_day
-from lib.hub.hub_options_funds_lib import merge_board_row_balances
+from lib.hub.hub_options_funds_lib import merge_board_row_balances, repair_double_counted_fund_entry
 
 from lib.paths import manual_trading_hub_dir
 
@@ -275,7 +275,7 @@ def _series_from_history(
         total = 0.0
         n = 0
         for key in account_keys:
-            ac = ac_map.get(key) or {}
+            ac = repair_double_counted_fund_entry(ac_map.get(key) or {})
             t = account_total_usdt(ac.get("funding_usdt"), ac.get("trading_usdt"))
             if t is None:
                 t = _safe_float(ac.get("total_usdt"))
@@ -291,7 +291,8 @@ def _series_from_history(
 def _account_series(history: dict[str, dict], key: str) -> list[dict[str, Any]]:
     out: list[dict[str, Any]] = []
     for day in sorted(history.keys()):
-        ac = (history.get(day) or {}).get("accounts", {}).get(key) or {}
+        raw = (history.get(day) or {}).get("accounts", {}).get(key) or {}
+        ac = repair_double_counted_fund_entry(raw)
         t = account_total_usdt(ac.get("funding_usdt"), ac.get("trading_usdt"))
         if t is None:
             t = _safe_float(ac.get("total_usdt"))