R-516 items 7-10: one banner per drive, local times, te-form, health banners in the household's language

- item 7: the storage page shows the disconnect time in local time (fmtTimeStr), not the raw RFC3339 UTC.
- item 8: a disconnected drive no longer has two banners - the health check's warning for it is dropped
  when the dedicated alert.storage.disconnected banner was built (it stays on the wire).
- item 9: alert.deadapp.group says "nezd meg" (te-form); formal ceiling 14 -> 13.
- item 10: the disk/memory/CPU/temperature health banners show the dashboard's own sentence
  (health.* keys, hu + en) via HealthReport.WarningMsgs/IssueMsgs; the wire text is unchanged.
  checkResources split out of RunHealthCheck as the test seam.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS

controller/internal/web/alerts.go

@@ -235,11 +235,16 @@ func (am *AlertManager) Refresh(report *monitor.HealthReport, cfg *config.Config
 	}
 
 	// From health check issues (critical)
-	for _, issue := range report.Issues {
+	for i, issue := range report.Issues {
+		// R-516 item 10: the banner shows the dashboard's own sentence (household language) when the
+		// check named one; the wire text is the fallback and stays untouched on the wire.
+		msg := report.IssueMsgAt(i)
 		alerts = append(alerts, Alert{
 			ID:          "health-" + simpleHash(issue),
 			Level:       "error",
-			Message:     issue, // ON THE WIRE (report health.issues) -- not ours to translate; slice 3
+			Message:     issue, // ON THE WIRE (report health.issues) -- the fallback when MessageKey is empty
+			MessageKey:  msg.Key,
+			MessageArgs: msg.Args,
 			Link:        "/monitoring",
 			LinkTextKey: "alert.link.monitoring",
 		})
@@ -247,10 +252,21 @@ func (am *AlertManager) Refresh(report *monitor.HealthReport, cfg *config.Config
 
 	// From health check warnings
 	for i, w := range report.Warnings {
+		// R-516 item 8: a disconnected drive already has its own banner above (alert.storage.disconnected,
+		// in the household's language). The health check's „Meghajtó leválasztva" warning for the same
+		// drive was a SECOND banner on every page — dropped here whenever the dedicated banners were built
+		// from the storage list. The warning itself stays on the wire (report health.warnings).
+		// Pinned by TestR516_DisconnectedDriveHasOneBanner.
+		if len(storagePaths) > 0 && report.WarningKindAt(i) == monitor.WarnKindStorageDisconnected {
+			continue
+		}
+		msg := report.WarningMsgAt(i) // R-516 item 10, as for the issues above
 		alert := Alert{
 			ID:          "health-" + simpleHash(w),
 			Level:       "warning",
-			Message:     w, // ON THE WIRE (report health.warnings) -- not ours to translate; slice 3
+			Message:     w, // ON THE WIRE (report health.warnings) -- the fallback when MessageKey is empty
+			MessageKey:  msg.Key,
+			MessageArgs: msg.Args,
 			Link:        "/monitoring",
 			LinkTextKey: "alert.link.monitoring",
 		}