Add safe manual instance rebalancing

src/lib/ui/rebalancing-presentation.ts

@@ -0,0 +1,9 @@
+import type { RebalanceMove, RebalanceRun } from '$lib/rebalancing.js';
+
+export const rebalanceRunLabels: Record<RebalanceRun['state'], string> = {
+    running: 'In progress', stopping: 'Stopping', done: 'Finished', stopped: 'Stopped', failed: 'Needs attention'
+};
+export const rebalanceMoveLabels: Record<RebalanceMove['state'], string> = {
+    planned: 'Not started', moving: 'Moving', done: 'Completed', skipped: 'Skipped', failed: 'Needs attention'
+};
+export function rebalanceRunHref(id: string) { return `/capacity?rebalance=1&rebalanceRun=${encodeURIComponent(id)}`; }