Move fleet stats to nav page; backfill funds and loss metrics from curve/status.

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

backend/app/api/fleet.py

@@ -220,12 +220,26 @@ async def fleet_status(_tok: Annotated[str, Depends(require_fleet_token)]) -> di
             return None
         return _sf(key, default)
 
+    latest_funds = 0.0
+    try:
+        from ..sim.funds_wallets import FundsWallets
+
+        latest_funds = float(FundsWallets(db).total_usdt_equiv())
+    except Exception:
+        try:
+            from ..sim.ledger import Ledger
+
+            latest_funds = float(Ledger(db).snapshot().get("equity") or 0)
+        except Exception:
+            latest_funds = 0.0
+
     return {
         "ok": True,
         "mode": settings.mode,
         "env_name": settings.env_name,
         "exchange": exchange_name,
         "sim": settings.is_sim,
+        "latest_funds": latest_funds,
         "market_connected": bool(snap.connected) if snap else False,
         "pair": snap.pair.to_dict() if snap and snap.pair else None,
         "index_px": (