Hide disabled exchanges from dashboard and fund overview.

Only aggregate and display exchanges with enabled monitoring in system settings.

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

tests/test_hub_fund_history_lib.py

@@ -73,10 +73,8 @@ def test_build_fund_overview_skips_unmonitored(tmp_path, monkeypatch):
     )
     assert out["totals"]["total_usdt"] == 40.0
     assert out["totals"]["monitored_count"] == 1
-    assert len(out["accounts"]) == 2
-    off = next(a for a in out["accounts"] if a["key"] == "gate_bot")
-    assert off["monitored"] is False
-    assert off["total_usdt"] is None
+    assert len(out["accounts"]) == 1
+    assert all(a["monitored"] for a in out["accounts"])
     assert out["totals"]["drawdown"]["max_drawdown_u"] == 0.0