fix(tag): RR检查前置于tag打标——RR<2.0不打current_recommend

- 原顺序:打tag→查RR→RR<2.0拒绝入队但tag已落盯盘→盯盘≠XMPP
- 修正: 先查RR→RR<2.0直接跳过不打tag→盯盘和XMPP永远一致

mofin_db.py

@@ -1287,16 +1287,30 @@ def sync_recommend_tag(conn, code: str, timing_signal: str):
                 conn.commit()
                 print(f"  [AUTO-POS] {code} 仓位'{_pos_r[1]}'→'{_pos_auto}'", flush=True)
         if timing_signal in _ACTION_BUY or timing_signal in _ACTION_SELL:
-            conn.execute(
-                "UPDATE holding_strategies SET tag='current_recommend' "
-                "WHERE code=? AND status='active' AND (tag IS NULL OR tag != 'active_manual')",
-                (code,))
-            conn.commit()
-            # 入队条件：tag 新鲜转成 或 信号从非动作级转入动作级
-            #（防：信号持有→卖出但tag已遗留current_recommend就不入队——2026-07-27 老爸）
+            # ── 买入RR质量门禁（2026-07-27 老爸：RR<2.0的买入不值得推荐，tag都不能打，防盯盘垃圾）──
+            # 此前tag先打、enqueue再查RR，结果RR<2.0的tag已落盯盘，与XMPP不一致。
+            _should_tag = True
+            if timing_signal in _ACTION_BUY:
+                _rr_chk = conn.execute(
+                    "SELECT rr_ratio FROM holding_strategies WHERE code=? AND status='active'", (code,)).fetchone()
+                if _rr_chk and (_rr_chk[0] or 0) < 2.0:
+                    print(f"  [TAG SYNC] {code} RR={_rr_chk[0]:.2f}<2.0，不打推荐tag", flush=True)
+                    _should_tag = False
+            if _should_tag:
+                conn.execute(
+                    "UPDATE holding_strategies SET tag='current_recommend' "
+                    "WHERE code=? AND status='active' AND (tag IS NULL OR tag != 'active_manual')",
+                    (code,))
+                conn.commit()
+            else:
+                # RR不达标 → 清除旧tag（如果打了）
+                if _old_tag == 'current_recommend':
+                    conn.execute("UPDATE holding_strategies SET tag='' WHERE code=? AND status='active'", (code,))
+                    conn.commit()
+            # 入队条件（2026-07-27 老爸：tag新鲜转成、信号转入动作级、或卖出信号 — 三个场景均需入队）
             _old_action = _old_sig in _ACTION_BUY or _old_sig in _ACTION_SELL
             _new_action = timing_signal in _ACTION_BUY or timing_signal in _ACTION_SELL
-            if _old_tag != 'current_recommend' or (not _old_action and _new_action):
+            if (_should_tag and _old_tag != 'current_recommend') or (not _old_action and _new_action):
                 enqueue_recommend(conn, code)  # 新推荐 → 摘要队列（batch 结束统一发）
         elif _old_tag == 'current_recommend':
             # 空信号或非动作信号 → 清除自动推荐（active_manual 不动）