feat(api): add EC2 Auto Scaling groups to the cloud explorer

Create groups from a launch template (in the default subnets unless given),
change their minimum, desired and maximum capacity, replace or remove an
instance, and follow the launches and terminations TheCloud's reconciler makes.
Deleting a group terminates its instances. Scaling policies are not offered:
the runtime stores them but its alarms only drive ECS scaling.

packages/api/src/routes/clouds.ts

@@ -2,6 +2,7 @@ import {Hono} from 'hono'
 import type {Context} from 'hono'
 import type {
     AlarmStateValue,
+    AutoScalingCapacityInput,
     CertificateRevocationReason,
     CloudProvider,
     CloudServiceType,
@@ -553,6 +554,24 @@ export function createCloudRoutes(injectedService?: CloudProxyService) {
         })
     })
 
+    app.put('/:cloud/services/autoscaling/resources/:id/capacity', async (c) => {
+        const cloud = c.req.param('cloud') as CloudProvider
+        if (!isCloudProvider(cloud)) return c.json({error: 'Unknown cloud'}, 404)
+
+        return withRuntime(c, async () => c.json(await svc(c).setAutoScalingCapacity(cloud, c.req.param('id'), await c.req.json<AutoScalingCapacityInput>())))
+    })
+
+    app.post('/:cloud/services/autoscaling/resources/:id/instances/:instanceId/terminate', async (c) => {
+        const cloud = c.req.param('cloud') as CloudProvider
+        if (!isCloudProvider(cloud)) return c.json({error: 'Unknown cloud'}, 404)
+
+        return withRuntime(c, async () => {
+            const body = await c.req.json<{replace?: boolean}>()
+            await svc(c).terminateAutoScalingInstance(cloud, c.req.param('id'), c.req.param('instanceId'), body.replace === true)
+            return c.json({ok: true})
+        })
+    })
+
     app.get('/:cloud/services/k8s/resources/:id/nodegroups', async (c) => {
         const cloud = c.req.param('cloud') as CloudProvider
         if (!isCloudProvider(cloud)) return c.json({error: 'Unknown cloud'}, 404)