feat: CrowdSec journald-Acquisition + Alarm-Quittieren/Löschen — v1.3.5

- fix(crowdsec/packaging): postinst setzt die HAProxy-Acquisition deterministisch
  auf die journald-Unit (haproxy.service) statt der cscli-setup-Datei-Default
  (/var/log/haproxy.log existiert nicht → CrowdSec las nichts → HTTP/CVE-Szenarien
  liefen leer). Self-healing auf jedem configure; admin-Custom bleibt unangetastet.
- feat(alerts): Alarme (alert_events) bulk quittieren + löschen. Migration 0045
  (acknowledged_at + Teil-Index). Dashboard-Karte zählt nur noch OFFENE (open=true)
  → Quittieren lässt die "Aktuelle Alerts"-Meldung verschwinden, History bleibt.
  Events-Tab: Row-Selection, Quittieren/Löschen (Auswahl) + "Alle quittieren",
  Status-Spalte (offen/quittiert). Audit-geloggt.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

management-ui/src/i18n/locales/en/common.json

@@ -1505,6 +1505,12 @@
     "emptyEventsDesc": "Triggers (cert expiry, backup failure, cluster drift, license invalid, etc.) haven't fired any events yet. When they do, they land here and get delivered to the configured channels.",
     "noChannels": "no active channel",
     "confirmDelete": "Really delete channel {{name}}?",
+    "acknowledge": "Acknowledge",
+    "acknowledgeAll": "Acknowledge all",
+    "acknowledged": "Acknowledged",
+    "acked": "acknowledged",
+    "open": "open",
+    "confirmDeleteEvents": "Permanently delete {{n}} event(s)?",
     "kindWebhook": "Webhook (Slack/Discord/Teams/HTTP endpoint)",
     "kindEmail": "Email (SMTP)",
     "smtp": {
@@ -1525,7 +1531,8 @@
       "time": "Time",
       "severity": "Severity",
       "subject": "Subject",
-      "delivered": "Delivered"
+      "delivered": "Delivered",
+      "status": "Status"
     }
   },
   "remotes": {