fix(node): stop a departed master's frozen traffic from disabling clients (#6113)

client_global_traffics rows are keyed by (master_guid, email) and are only
ever overwritten by a push from that same master. A master that stops
pushing — decommissioned, reinstalled under a fresh GUID, or detached from
the node — therefore leaves its last snapshot behind permanently.

depletedClientsCond's cross-panel EXISTS branch matched any such row, so a
node kept comparing a client's quota against counters frozen weeks earlier.
Once they exceeded the quota the node disabled the client on every traffic
poll, and the node -> master enable merge latched that off on the master too,
where nothing sets it back. The reported symptom is exactly this: a client at
11 GB of a 24 GB quota, enabled on two nodes, disabled on the third, which
still held a 27-day-old row from a previous master reporting 30 GB.

Bound both the enforcement predicate and the display overlay to rows a master
refreshed within globalTrafficFreshWindow. Masters push every 30s, so a live
master is never affected; a master that is merely unreachable for a while
keeps enforcing for a full day before its numbers are set aside.

The one-way enable merge that makes such a disable permanent on the master is
deliberate (12d84c2a, #4917) and is left alone.

internal/web/service/client_bulk.go

@@ -429,8 +429,7 @@ func (s *ClientService) BulkAdjust(inboundSvc *InboundService, emails []string,
 		}
 	}
 
-	now := time.Now().Unix() * 1000
-	cond := depletedCond(db)
+	cond, condArgs := depletedCond(db)
 	candidateEmails := make([]string, 0, len(plan))
 	for email, entry := range plan {
 		if entry.applyExpiry || entry.applyTotal {
@@ -441,7 +440,7 @@ func (s *ClientService) BulkAdjust(inboundSvc *InboundService, emails []string,
 	for _, batch := range chunkStrings(candidateEmails, sqlInChunk) {
 		var rows []string
 		if err := db.Model(xray.ClientTraffic{}).
-			Where(cond+" AND enable = ? AND email IN ?", now, false, batch).
+			Where(cond+" AND enable = ? AND email IN ?", append(append([]any{}, condArgs...), false, batch)...).
 			Pluck("email", &rows).Error; err != nil {
 			return result, needRestart, err
 		}
@@ -503,7 +502,7 @@ func (s *ClientService) BulkAdjust(inboundSvc *InboundService, emails []string,
 		for _, batch := range chunkStrings(wasList, sqlInChunk) {
 			var rows []string
 			if err := db.Model(xray.ClientTraffic{}).
-				Where(cond+" AND email IN ?", now, batch).
+				Where(cond+" AND email IN ?", append(append([]any{}, condArgs...), batch)...).
 				Pluck("email", &rows).Error; err != nil {
 				return result, needRestart, err
 			}