Remove autoscaling action cooldown

tests/unit/autoscaling-policies.test.ts

@@ -114,3 +114,25 @@ it.each([false, true])('reconciles removed-mode creation while preserving submit
     expect(db().prepare('SELECT COUNT(*) AS n FROM server_key_leases').get()).toEqual({ n: submitted ? 1 : 0 });
     expect(db().prepare("SELECT COUNT(*) AS n FROM server_deployments WHERE action='create'").get()).toEqual({ n: 1 });
 });
+
+it('removes saved cooldowns on upgrade without changing the empty hold or pausing the policy', async () => {
+    const { db, closeDb } = await import('../../src/lib/server/db/index.js');
+    const scaling = await import('../../src/lib/server/autoscaling/index.js');
+    const input = { ...settings, emptyMinutes: 17 };
+    const saved = scaling.saveScaling(input, undefined, undefined, scaling.previewScaling(input).token);
+    db().exec('ALTER TABLE autoscaling_policies ADD COLUMN next_action_at INTEGER NOT NULL DEFAULT 0');
+    db().prepare("UPDATE autoscaling_policies SET next_action_at=?,settings=json_set(settings,'$.cooldownMinutes',60) WHERE id=?")
+        .run(Date.now() + 3600_000, saved.id);
+    closeDb();
+    const restored = scaling.getScalingPolicy(saved.id)!;
+    expect(restored).toEqual(saved);
+    expect(restored).not.toHaveProperty('cooldownMinutes');
+    expect(restored).not.toHaveProperty('nextActionAt');
+    expect(db().pragma('table_info(autoscaling_policies)')).not.toContainEqual(expect.objectContaining({ name: 'next_action_at' }));
+    expect(JSON.parse((db().prepare('SELECT settings FROM autoscaling_policies WHERE id=?').get(saved.id) as { settings: string }).settings))
+        .not.toHaveProperty('cooldownMinutes');
+    closeDb();
+    expect(scaling.getScalingPolicy(saved.id)).toEqual(saved);
+    expect(await scaling.runAutoscaling()).toBe(true);
+    expect(scaling.scalingReport().policies[0].policy.emptyMinutes).toBe(17);
+});