Add config-sync cycle retention alongside config history keep.

Mirror LLDP job retention so finished sync cycles are pruned by policy while keeping per-NE config version history separate.

Co-authored-by: Cursor <cursoragent@cursor.com>

web/src/i18n/en.ts

@@ -304,7 +304,8 @@ const en = {
     enabled: "Enable scheduled sync",
     intervalDays: "Interval (days)",
     concurrency: "Concurrency",
-    historyKeep: "History keep",
+    historyKeep: "Config versions to keep",
+    cycleKeep: "Jobs to keep",
     scope: "Scope",
     scopeAll: "All NEs",
     scopeSelected: "Selected NEs",

web/src/i18n/zh.ts

@@ -304,7 +304,8 @@ const zh = {
     enabled: "启用周期调度",
     intervalDays: "周期（天）",
     concurrency: "并发",
-    historyKeep: "历史保留",
+    historyKeep: "配置历史保留",
+    cycleKeep: "任务保留数",
     scope: "范围",
     scopeAll: "全部网元",
     scopeSelected: "指定网元",