feat(strategy): WeChat notify on trend and roll plan start/end

Add shared strategy_wechat_notify helpers; hook trend execute/finalize and roll group open/close across four exchanges and Gate bot.

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

strategy_register.py

@@ -132,7 +132,7 @@ def _roll_preview_response(cfg: dict, data: dict, json_mode: bool = False) -> di
     if not mon:
         conn.close()
         return {"ok": False, "msg": "未找到该币种同向的下单监控持仓，请先在「实盘下单」开仓"}
-    rg, legs_done = _get_or_create_roll_group_meta(conn, mon)
+    rg, legs_done, _is_new = _get_or_create_roll_group_meta(conn, mon)
     conn.close()
     pos = cfg["get_position"](ex_sym, direction)
     qty = float(pos.get("contracts") or 0)
@@ -217,7 +217,7 @@ def _roll_execute(cfg: dict, data: dict) -> tuple[bool, str]:
         mon = _get_active_monitor(conn, cfg, symbol, direction)
         if not mon:
             return False, "监控单已不存在"
-        rg, legs_done = _get_or_create_roll_group_meta(conn, mon)
+        rg, legs_done, roll_is_new = _get_or_create_roll_group_meta(conn, mon)
         new_sl = float(preview["new_stop_loss"])
         tp0 = float(preview["initial_take_profit"])
         if add_mode == "market":
@@ -253,6 +253,21 @@ def _roll_execute(cfg: dict, data: dict) -> tuple[bool, str]:
                 (legs_done + 1, cfg["app_now_str"](), rg["id"]),
             )
             conn.commit()
+            if roll_is_new:
+                try:
+                    from strategy_wechat_notify import notify_roll_group_started
+
+                    notify_roll_group_started(
+                        cfg,
+                        group_id=int(rg["id"]),
+                        symbol=symbol,
+                        direction=direction,
+                        order_monitor_id=int(mon["id"]),
+                        initial_take_profit=tp0,
+                        initial_stop_loss=float(mon.get("stop_loss") or new_sl),
+                    )
+                except Exception:
+                    pass
             return True, f"已挂限价加仓单 #{oid}，成交后请在页面点「同步持仓并更新止损」"
         cfg["replace_tpsl"](ex_sym, direction, new_sl, tp0, mon)
         conn.execute(
@@ -284,6 +299,23 @@ def _roll_execute(cfg: dict, data: dict) -> tuple[bool, str]:
             (new_sl, mon["id"]),
         )
         conn.commit()
+        try:
+            from strategy_wechat_notify import (
+                notify_roll_group_started,
+            )
+
+            if roll_is_new:
+                notify_roll_group_started(
+                    cfg,
+                    group_id=int(rg["id"]),
+                    symbol=symbol,
+                    direction=direction,
+                    order_monitor_id=int(mon["id"]),
+                    initial_take_profit=tp0,
+                    initial_stop_loss=new_sl,
+                )
+        except Exception:
+            pass
         return True, f"滚仓第 {legs_done + 1} 腿已市价成交，交易所止损已更新，止盈仍为首仓 {tp0}"
     except Exception as e:
         fe = cfg.get("friendly_error")
@@ -304,14 +336,14 @@ def _get_active_monitor(conn, cfg: dict, symbol: str, direction: str) -> Optiona
     return _row_to_dict(row) if row else None
 
 
-def _get_or_create_roll_group_meta(conn, mon: dict) -> tuple[dict, int]:
+def _get_or_create_roll_group_meta(conn, mon: dict) -> tuple[dict, int, bool]:
     row = conn.execute(
         "SELECT * FROM roll_groups WHERE order_monitor_id=? AND status='active' ORDER BY id DESC LIMIT 1",
         (mon["id"],),
     ).fetchone()
     if row:
         d = _row_to_dict(row)
-        return d, int(d.get("leg_count") or 0)
+        return d, int(d.get("leg_count") or 0), False
     now = mon.get("created_at") or ""
     cur = conn.execute(
         """INSERT INTO roll_groups (
@@ -335,6 +367,17 @@ def _get_or_create_roll_group_meta(conn, mon: dict) -> tuple[dict, int]:
         ),
     )
     gid = int(cur.lastrowid)
-    return {"id": gid, "leg_count": 0, "initial_take_profit": mon.get("take_profit")}, 0
+    return (
+        {
+            "id": gid,
+            "leg_count": 0,
+            "initial_take_profit": mon.get("take_profit"),
+            "initial_stop_loss": mon.get("stop_loss"),
+            "symbol": mon.get("symbol"),
+            "direction": mon.get("direction"),
+        },
+        0,
+        True,
+    )