fix: 作废投递走统一终态函数并写回执收尾

internal/app/message/recover.go

@@ -78,6 +78,10 @@ WHERE d.state = 'pending' AND d.pushed_conn IS NULL
 			}
 		}
 
+		if err := finalizeStuckDispatchedTx(tx, nowMs, a.lim.RecordRetentionDays); err != nil {
+			return err
+		}
+
 		if a.lim.RecordRetentionDays > 0 {
 			cutoff := nowMs - int64(a.lim.RecordRetentionDays)*24*3600*1000
 			if _, err := tx.Exec(`
@@ -120,3 +124,36 @@ DELETE FROM send_keys WHERE rowid IN (
 	a.flushRevokes(ctx)
 	return nil
 }
+
+// finalizeStuckDispatchedTx 收尾「dispatched 且已无 pending 投递」的消息（C-04 兜底，修复已卡住的数据）。
+func finalizeStuckDispatchedTx(tx *sql.Tx, nowMs int64, recordDays int) error {
+	rows, err := tx.Query(`
+SELECT seq FROM messages
+WHERE state = ?
+  AND NOT EXISTS (
+    SELECT 1 FROM deliveries d WHERE d.seq = messages.seq AND d.state = 'pending'
+  )
+LIMIT 500`, StateDispatched)
+	if err != nil {
+		return err
+	}
+	var seqs []int64
+	for rows.Next() {
+		var seq int64
+		if err := rows.Scan(&seq); err != nil {
+			_ = rows.Close()
+			return err
+		}
+		seqs = append(seqs, seq)
+	}
+	_ = rows.Close()
+	if err := rows.Err(); err != nil {
+		return err
+	}
+	for _, seq := range seqs {
+		if err := TryFinalizeTx(tx, seq, nowMs, recordDays); err != nil {
+			return err
+		}
+	}
+	return nil
+}