Preserve shortage signals during global pause (Refs #137)

tests/unit/report-workers.test.ts

@@ -84,9 +84,13 @@ it('refreshes policy signals after policy edits and global pauses without new sa
             "INSERT INTO settings(key,value) VALUES('autoscaling_paused','1') ON CONFLICT(key) DO UPDATE SET value='1'"
         )
         .run();
-    expect((await metricsReport(query)).maps[0].policy?.pausedReason).toBeTruthy();
+    const globallyPaused = await metricsReport(query);
+    expect(globallyPaused.autoscalingPaused).toBe(true);
+    expect(globallyPaused.maps[0]).toEqual(belowMaximum);
     db().prepare("UPDATE settings SET value='0' WHERE key='autoscaling_paused'").run();
-    expect((await metricsReport(query)).maps[0].policy?.pausedReason).toBeNull();
+    const resumed = await metricsReport(query);
+    expect(resumed.autoscalingPaused).toBe(false);
+    expect(resumed.maps).toEqual(globallyPaused.maps);
     db().prepare("DELETE FROM autoscaling_policies WHERE id='moon-policy'").run();
     expect((await metricsReport(query)).maps[0].policy).toBeNull();
 });