feat: hub setting to hide account balances and PnL in monitor

Persist show_account_pnl in hub_settings.json; refine key monitor panel layout with right-aligned live stats and scrollable history (max 8 rows).

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

manual_trading_hub/settings_store.py

@@ -9,6 +9,10 @@ from pathlib import Path
 DIR = Path(__file__).resolve().parent
 SETTINGS_PATH = DIR / "hub_settings.json"
 
+DEFAULT_DISPLAY = {
+    "show_account_pnl": True,
+}
+
 DEFAULT_EXCHANGES = [
     {
         "id": "0",
@@ -65,8 +69,20 @@ def env_force_disabled_ids() -> set[str]:
     return _ids_from_csv(raw)
 
 
+def normalize_display_prefs(raw: dict | None) -> dict:
+    out = dict(DEFAULT_DISPLAY)
+    if isinstance(raw, dict):
+        if "show_account_pnl" in raw:
+            out["show_account_pnl"] = bool(raw.get("show_account_pnl"))
+    return out
+
+
 def load_settings() -> dict:
-    data = {"exchanges": [dict(x) for x in DEFAULT_EXCHANGES], "version": 1}
+    data = {
+        "exchanges": [dict(x) for x in DEFAULT_EXCHANGES],
+        "version": 1,
+        "display": dict(DEFAULT_DISPLAY),
+    }
     if SETTINGS_PATH.is_file():
         try:
             loaded = json.loads(SETTINGS_PATH.read_text(encoding="utf-8"))
@@ -74,6 +90,7 @@ def load_settings() -> dict:
                 data = loaded
         except Exception:
             pass
+    data["display"] = normalize_display_prefs(data.get("display"))
     force_off = env_force_disabled_ids()
     for ex in data.get("exchanges") or []:
         if str(ex.get("id")) in force_off: