feat: bidirectional daily auto-transfer with position skip

Rebalance swap to AUTO_TRANSFER_AMOUNT at Beijing hour: top up from funding or sweep excess back. Skip and WeChat notify when active positions exist.

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

crypto_monitor_binance/app.py

@@ -98,6 +98,7 @@ from key_monitor_full_margin_lib import (
     monitor_type_disallowed_in_full_margin,
     purge_disallowed_key_monitors,
 )
+from auto_transfer_daily_lib import run_auto_transfer_once_per_day
 from key_monitor_lib import (
     KEY_DIRECTION_WATCH,
     KEY_MONITOR_ALERT_ONLY_TYPES,
@@ -2977,72 +2978,23 @@ def get_account_usdt_total(account_type):
 
 
 def auto_transfer_once_per_day():
-    if not AUTO_TRANSFER_ENABLED:
-        return
-    utc_dt = utc_now_dt()
-    bj = utc_dt.astimezone(APP_TZ)
-    if bj.hour != AUTO_TRANSFER_BJ_HOUR:
-        return
-    transfer_day = utc_calendar_date_str()
-    conn = get_db()
-    exists = conn.execute(
-        "SELECT id FROM transfer_logs WHERE transfer_type=? AND transfer_day=?",
-        ("auto_daily", transfer_day)
-    ).fetchone()
-    if exists:
-        conn.close()
-        return
-    target_amount = AUTO_TRANSFER_AMOUNT
-    to_balance = get_account_usdt_total(AUTO_TRANSFER_TO)
-    from_balance = get_account_usdt_total(AUTO_TRANSFER_FROM)
-    if to_balance is None:
-        conn.execute(
-            "INSERT INTO transfer_logs (transfer_type, transfer_day, amount, from_account, to_account, status, message) VALUES (?,?,?,?,?,?,?)",
-            ("auto_daily", transfer_day, 0, AUTO_TRANSFER_FROM, AUTO_TRANSFER_TO, "failed", f"读取{AUTO_TRANSFER_TO}账户USDT失败")
-        )
-        conn.commit()
-        conn.close()
-        return
-    needed = round(max(target_amount - float(to_balance), 0), FUNDS_DECIMALS)
-    if needed <= 0:
-        conn.execute(
-            "INSERT INTO transfer_logs (transfer_type, transfer_day, amount, from_account, to_account, status, message) VALUES (?,?,?,?,?,?,?)",
-            ("auto_daily", transfer_day, 0, AUTO_TRANSFER_FROM, AUTO_TRANSFER_TO, "skipped", f"{AUTO_TRANSFER_TO}账户已达到目标{target_amount}U")
-        )
-        conn.commit()
-        conn.close()
-        return
-    if from_balance is not None and from_balance < needed:
-        conn.execute(
-            "INSERT INTO transfer_logs (transfer_type, transfer_day, amount, from_account, to_account, status, message) VALUES (?,?,?,?,?,?,?)",
-            ("auto_daily", transfer_day, needed, AUTO_TRANSFER_FROM, AUTO_TRANSFER_TO, "failed", f"{AUTO_TRANSFER_FROM}账户USDT不足，需{needed}U，当前{round(from_balance, FUNDS_DECIMALS)}U")
-        )
-        conn.commit()
-        conn.close()
-        send_wechat_msg(
-            f"自动划转失败：{AUTO_TRANSFER_FROM}余额不足，需{needed}U，当前{round(from_balance, FUNDS_DECIMALS)}U\n"
-            f"账簿日(UTC)：{transfer_day}｜触发时刻(北京)：{app_now_str()}"
-        )
-        return
-
-    ok, msg, _ = execute_transfer_usdt(needed, AUTO_TRANSFER_FROM, AUTO_TRANSFER_TO)
-    conn.execute(
-        "INSERT INTO transfer_logs (transfer_type, transfer_day, amount, from_account, to_account, status, message) VALUES (?,?,?,?,?,?,?)",
-        ("auto_daily", transfer_day, needed, AUTO_TRANSFER_FROM, AUTO_TRANSFER_TO, "success" if ok else "failed", msg[:500])
+    run_auto_transfer_once_per_day(
+        enabled=AUTO_TRANSFER_ENABLED,
+        bj_hour=AUTO_TRANSFER_BJ_HOUR,
+        target_amount=AUTO_TRANSFER_AMOUNT,
+        from_account=AUTO_TRANSFER_FROM,
+        to_account=AUTO_TRANSFER_TO,
+        funds_decimals=FUNDS_DECIMALS,
+        get_db=get_db,
+        get_active_position_count=get_active_position_count,
+        get_account_usdt_total=get_account_usdt_total,
+        execute_transfer_usdt=execute_transfer_usdt,
+        send_wechat_msg=send_wechat_msg,
+        utc_now_dt=utc_now_dt,
+        app_tz=APP_TZ,
+        utc_calendar_date_str=utc_calendar_date_str,
+        app_now_str=app_now_str,
     )
-    conn.commit()
-    conn.close()
-    if ok:
-        send_wechat_msg(
-            f"自动划转成功：补足到{target_amount}U，实际划转{needed}U "
-            f"{AUTO_TRANSFER_FROM}->{AUTO_TRANSFER_TO}\n"
-            f"账簿日(UTC)：{transfer_day}｜触发时刻(北京)：{app_now_str()}"
-        )
-    else:
-        send_wechat_msg(
-            f"自动划转失败：计划补足到{target_amount}U，需划转{needed}U\n原因：{msg}\n"
-            f"账簿日(UTC)：{transfer_day}｜触发时刻(北京)：{app_now_str()}"
-        )
 
 
 def trading_day_reset_allows_new_open(now):