chore: Save agent ID on exit (#274)

src/cli/components/SessionStats.tsx

@@ -10,6 +10,18 @@ function formatDuration(ms: number): string {
   if (ms < 1000) {
     return `${Math.round(ms)}ms`;
   }
+
+  const totalSeconds = Math.floor(ms / 1000);
+  const hours = Math.floor(totalSeconds / 3600);
+  const minutes = Math.floor((totalSeconds % 3600) / 60);
+  const seconds = totalSeconds % 60;
+
+  if (hours > 0) {
+    return `${hours}h ${minutes}m`;
+  }
+  if (minutes > 0) {
+    return `${minutes}m ${seconds}s`;
+  }
   return `${(ms / 1000).toFixed(1)}s`;
 }
 
@@ -20,15 +32,16 @@ function formatNumber(n: number): string {
 export function SessionStats({ stats, agentId }: SessionStatsProps) {
   const wallDuration = formatDuration(stats.totalWallMs);
   const apiDuration = formatDuration(stats.totalApiMs);
+  const steps = stats.usage.stepCount;
+  const inputTokens = formatNumber(stats.usage.promptTokens);
+  const outputTokens = formatNumber(stats.usage.completionTokens);
 
   return (
     <Box flexDirection="column" paddingTop={1}>
       <Text dimColor>Total duration (API): {apiDuration}</Text>
       <Text dimColor>Total duration (wall): {wallDuration}</Text>
       <Text dimColor>
-        Usage: {stats.usage.stepCount} steps,{" "}
-        {formatNumber(stats.usage.promptTokens)} input,{" "}
-        {formatNumber(stats.usage.completionTokens)} output
+        Usage: {steps} steps · {inputTokens} input · {outputTokens} output
       </Text>
       {agentId && <Text dimColor>Agent ID: {agentId}</Text>}
     </Box>