Add dark workbench dashboard with host CPU/memory gauges.

Sample Windows CPU via Processor Utility so values match Task Manager, and expose host metrics on /v1/metrics/json for the workbench poll.

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

web/src/i18n/en.ts

@@ -24,6 +24,55 @@ const en = {
     monitoring: "Monitoring",
     operations: "Operations",
     system: "System",
+    welcomeEyebrow: "Workbench",
+    welcomeTitle: "Welcome back, {{name}}",
+    welcomeSub: "Monitor sync, topology, and ops tasks from one place.",
+    today: "Today · {{date}}",
+    kpi: {
+      uptime: "API uptime",
+      health: "System health",
+      tasks: "Active tasks",
+      healthOk: "Schedulers healthy",
+      healthWarn: "Check schedulers",
+      healthUnknown: "Metrics unavailable",
+    },
+    statusTitle: "Runtime status",
+    announceTitle: "Announcements",
+    recentTitle: "Recent operations",
+    recentMore: "View all",
+    quickTitle: "Quick actions",
+    emptyRecent: "No recent audit entries.",
+    gauge: {
+      cpu: "CPU",
+      mem: "Memory",
+      cli: "CLI budget",
+      db: "DB pool",
+      webcrt: "WebCRT",
+      tasks: "Active tasks",
+      low: "Low load",
+      normal: "Normal",
+      high: "Busy",
+    },
+    quick: {
+      tasks: "Task overview",
+      logs: "Audit logs",
+      users: "User admin",
+      apiKeys: "API keys",
+    },
+    announce: {
+      a1: "Dark workbench shell is live — other modules follow the same palette.",
+      a1Date: "2026-08-04",
+      a2: "LLDP collect supports pause / resume / stop; interrupted jobs resume after restart.",
+      a2Date: "2026-08-04",
+      a3: "Config sync and LLDP KPI boards refresh while jobs are running.",
+      a3Date: "2026-08-03",
+    },
+    recentCols: {
+      action: "Action",
+      module: "Module",
+      time: "Time",
+      user: "User",
+    },
     cards: {
       umeSync: "UME Sync",
       umeSyncDesc: "UME alarms, subscription & inventory",