fix(parser): dedup IDL events by timestamp to stop dropping recurring alarms

ParseIDLLog deduped by eventID|eventType|description, which is identical
across every occurrence of a recurring alarm (e.g. the flapping PCIe
presence check on Inspur HGX boards). That collapsed every later
occurrence into the first one, so applyGPUStatusFromEvents computed GPU
health from a stale, truncated event list and marked failed GPUs as OK.

internal/parser/vendors/inspur/idl.go

@@ -47,8 +47,12 @@ func ParseIDLLog(content []byte) []models.Event {
 		// Clean up description
 		description = cleanDescription(description)
 
-		// Create unique key for deduplication
-		eventKey := eventID + "|" + eventType + "|" + description
+		// Create unique key for deduplication. Must include the timestamp:
+		// recurring alarms (e.g. flapping PCIe presence checks) reuse the same
+		// eventID/eventType/description on every occurrence, so deduping without
+		// the timestamp collapses all later occurrences into the first one and
+		// silently drops the most recent (and most relevant) event.
+		eventKey := timestamp + "|" + eventID + "|" + eventType + "|" + description
 		if seenEvents[eventKey] {
 			continue
 		}