Fix: default uptime to 0 instead of 100 for inactive agents

src/app/(dashboard)/agents/columns.tsx

@@ -103,7 +103,7 @@ export function getAgentColumns({
       className: "w-[10%] text-center",
       accessor: (row) => {
         const uuid = row.uuid || row.serial;
-        const uptime = uptimeMap[uuid] ?? 100;
+        const uptime = uptimeMap[uuid] ?? 0;
         let color = "text-emerald-400";
         if (uptime < 90) color = "text-red-400";
         else if (uptime < 98) color = "text-amber-400";

src/app/(dashboard)/agents/page.tsx

@@ -99,8 +99,8 @@ export default function AgentsPage() {
     return hum === 'Online' || hum === 'Flows Detected' || (hum && hum.startsWith('Last seen:'));
   }).length;
   const offlineAgents = totalAgents - onlineAgents;
-  const uptimeValues = agents.map(a => uptimeMap[a.uuid || a.serial] ?? 100);
-  const avgUptime = uptimeValues.length > 0 ? uptimeValues.reduce((s, v) => s + v, 0) / uptimeValues.length : 100;
+  const uptimeValues = agents.map(a => uptimeMap[a.uuid || a.serial] ?? 0);
+  const avgUptime = uptimeValues.length > 0 ? uptimeValues.reduce((s, v) => s + v, 0) / uptimeValues.length : 0;
 
   // External Accounts di halaman Agents = akun eksternal teknikal/operasional saja
   // AGENT_VIEWER = akun network agent (sudah ada di tabel agents) → BUKAN akun eksternal