feat: archive trades by close time and show open time on live positions

Sort inner-archive daily trades by closed_at_ms; add open time and live hold duration to instance and hub position cards, with exchange margin on hub footer.

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

hub_symbol_archive_lib.py

@@ -1418,7 +1418,7 @@ def list_daily_trades(
     search: str = "",
     db_path: Path | None = None,
 ) -> dict[str, Any]:
-    """按日期区间列出开仓记录（本日/本周/本月/自选），含犯病与盈亏统计。"""
+    """按日期区间列出平仓记录（本日/本周/本月/自选，以平仓时间计），含犯病与盈亏统计。"""
     init_db(db_path)
     p = (period or "today").strip().lower() or "today"
     start_ms, end_ms, df, dt, period_label = resolve_period_bounds(
@@ -1431,7 +1431,7 @@ def list_daily_trades(
     conn = _connect(db_path)
     try:
         params: list[Any] = [start_ms, end_ms]
-        where = "opened_at_ms >= ? AND opened_at_ms < ?"
+        where = "closed_at_ms IS NOT NULL AND closed_at_ms >= ? AND closed_at_ms < ?"
         if ex_filter:
             where += " AND exchange_key=?"
             params.append(ex_filter)
@@ -1439,7 +1439,7 @@ def list_daily_trades(
             f"""
             SELECT * FROM archive_trade_cache
             WHERE {where}
-            ORDER BY opened_at_ms DESC, trade_id DESC
+            ORDER BY closed_at_ms DESC, trade_id DESC
             """,
             params,
         ).fetchall()