Add exclusive map ownership and capacity-aware autoscaling creation

src/lib/server/provisioning/worker.ts

@@ -1,3 +1,4 @@
+import { scalingAdmission } from '../autoscaling/admission.js';
 import { maintenanceAllowed } from '../maintenance/policies.js';
 import { db } from '../db/index.js';
 import { getServer } from '../fleet/servers.js';
@@ -93,6 +94,8 @@ export const processLifecycle = processProvisioning;
 
 function nativePass(options: { wait?: boolean }): Promise<void> {
     return processNativeProvisioning(operation => {
+        const scaling = scalingAdmission(operation.id);
+        if (scaling) return scaling;
         if (operation.action === 'create') return null;
         if (operation.action === 'destroy') {
             const other = db().prepare(`SELECT id FROM server_deployments WHERE server=? AND id!=? AND server_deleted_at IS NULL