Fix stats dirty data: today filter, exclude synthetic closes, scrub frozen float PnL.

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

app/routes.py

@@ -782,7 +782,7 @@ def register_routes(app: Flask) -> None:
                 )
                 tid = int(conn.execute("SELECT last_insert_rowid()").fetchone()[0])
 
-            # 同一账户+单号只保留一条「持仓中」，其余重复未平仓直接关掉
+            # 同一账户+单号只保留一条「持仓中」，其余重复未平仓直接关掉（不计盈亏）
             if ticket and close_time in (None, ""):
                 dup_snap = json.dumps(
                     {"event": "dedupe_closed", "kept_id": tid}, ensure_ascii=False
@@ -790,7 +790,7 @@ def register_routes(app: Flask) -> None:
                 conn.execute(
                     """
                     UPDATE trades
-                    SET close_time=?, snapshot_json=?
+                    SET close_time=?, profit=NULL, snapshot_json=?
                     WHERE account_id=? AND ticket=? AND id!=?
                       AND (close_time IS NULL OR close_time='')
                     """,
@@ -839,16 +839,14 @@ def register_routes(app: Flask) -> None:
                     snap = {}
                 snap["event"] = "reconcile_closed"
                 snap["reconciled_at"] = now_ts
-                profit = r["profit"]
-                if profit is None:
-                    profit = 0.0
+                # 假平仓不写入冻结浮盈，避免脏数据进统计
                 conn.execute(
                     """
                     UPDATE trades
-                    SET close_time=?, profit=?, snapshot_json=?
+                    SET close_time=?, profit=NULL, snapshot_json=?
                     WHERE id=?
                     """,
-                    (now_ts, profit, json.dumps(snap, ensure_ascii=False), r["id"]),
+                    (now_ts, json.dumps(snap, ensure_ascii=False), r["id"]),
                 )
                 closed_n += 1
         return jsonify({"ok": True, "closed": closed_n})
@@ -927,15 +925,29 @@ def register_routes(app: Flask) -> None:
     def records_stats_page():
         u = current_user()
         machine_raw = (request.args.get("machine_id") or "").strip()
+        period = (request.args.get("period") or "today").strip().lower()
+        if period not in ("today", "all"):
+            period = "today"
+        day = (request.args.get("day") or "").strip() or None
         account_id = None if u["role"] == "admin" else u.get("account_id")
         machines, machine_id = _resolve_machine_filter(u, machine_raw)
         with database.get_db() as conn:
-            stats = database.trade_stats(conn, account_id=account_id, machine_id=machine_id)
+            # 清掉历史假平仓上误写的盈亏
+            database.scrub_synthetic_trade_profits(conn)
+            stats = database.trade_stats(
+                conn,
+                account_id=account_id,
+                machine_id=machine_id,
+                day=day,
+                period=period,
+            )
         return render_template(
             "records_stats.html",
             stats=stats,
             machines=machines,
             selected_machine_id=machine_id,
+            selected_period=period,
+            selected_day=stats.get("day") or day or "",
         )
 
     @app.get("/records/<int:tid>")