Add autoscaling outcomes to Metrics (Refs #140)

tests/unit/report-workers.test.ts

@@ -158,3 +158,45 @@ it('refreshes policy signals after policy edits and global pauses without new sa
     db().prepare("DELETE FROM autoscaling_policies WHERE id='moon-policy'").run();
     expect((await metricsReport(query)).maps[0].policy).toBeNull();
 });
+
+it('refreshes autoscaling outcomes after completion, source changes and retention without new samples', async () => {
+    const { db } = await import('../../src/lib/server/db/index.js');
+    const { metricsReport } = await import('../../src/lib/server/reports/index.js');
+    const now = Date.UTC(2026, 9, 10, 12);
+    vi.spyOn(Date, 'now').mockReturnValue(now);
+    const query = parseMetricsQuery(new URLSearchParams('days=7'));
+    const report = () => metricsReport(query);
+    expect((await report()).autoscaling.added).toBe(0);
+    db()
+        .prepare(
+            `INSERT INTO server_deployments
+        (id,server,action,state,stage,started_at,triggered_by)
+        VALUES('operation','t5_zombie_moon_1','create','awaiting-health','Waiting',?,'test')`
+        )
+        .run(new Date(now - 72_000).toISOString());
+    db().exec(`INSERT INTO provisioning_sources(operation_id,kind,source_id,server)
+        VALUES('operation','autoscaling','deleted-policy','t5_zombie_moon_1')`);
+    expect((await report()).autoscaling.added).toBe(0);
+    db()
+        .prepare("UPDATE server_deployments SET state='done',finished_at=? WHERE id='operation'")
+        .run(new Date(now).toISOString());
+    expect((await report()).autoscaling).toMatchObject({
+        added: 1,
+        readinessSamples: 1,
+        readinessMeanSeconds: 72,
+        readinessMaxSeconds: 72
+    });
+    db().exec("UPDATE provisioning_sources SET kind='maintenance'");
+    expect((await report()).autoscaling.added).toBe(0);
+    db().exec("UPDATE provisioning_sources SET kind='autoscaling'");
+    expect((await report()).autoscaling.added).toBe(1);
+    db().exec("UPDATE server_deployments SET state='failed'");
+    expect((await report()).autoscaling).toMatchObject({
+        added: 0,
+        failed: 1,
+        readinessSamples: 0
+    });
+    db().exec('DELETE FROM server_deployments');
+    expect((await report()).autoscaling.failed).toBe(0);
+    expect((await report()).scopeOptions.maps).toEqual([]);
+});