Add safe manual instance rebalancing

src/lib/ui/provisioning-presentation.ts

@@ -119,6 +119,12 @@ export function provisioningReturn(value: string | null | undefined): { href: st
             }
             return { href: '/provisioning' + (params.size ? `?${params}` : ''), label: 'Back to Provisioning' };
         }
+        if (url.pathname === '/capacity' && url.searchParams.get('rebalance') === '1') {
+            const params = new URLSearchParams({ rebalance: '1' });
+            const run = url.searchParams.get('rebalanceRun');
+            if (run) params.set('rebalanceRun', run);
+            return { href: `/capacity?${params}`, label: 'Back to rebalance' };
+        }
         const match = url.pathname.match(/^\/(campaigns|betas|maintenance|collections\/launches)\/[^/]+$/);
         if (match) return { href: url.pathname, label: `Back to ${match[1] === 'collections/launches' ? 'collection' : match[1] === 'campaigns' ? 'campaign' : match[1] === 'betas' ? 'beta' : 'maintenance'}` };
     } catch { /* Fall back to the local list. */ }
@@ -180,7 +186,7 @@ export function isProvisioningDetail(value: unknown, id: string): value is Provi
     if (!record(value.activity) || !number(value.activity.total) || !(value.activity.latestId === null || number(value.activity.latestId))
         || !(value.activity.failureExcerpt === null || event(value.activity.failureExcerpt))) return false;
     if (!Array.isArray(value.sources) || !value.sources.every(source => record(source)
-        && ['campaign', 'beta', 'maintenance', 'watchdog', 'autoscaling'].includes(source.kind as string)
+        && ['campaign', 'beta', 'maintenance', 'watchdog', 'autoscaling', 'rebalance'].includes(source.kind as string)
         && text(source.source_id) && text(source.label) && localLink(source.href))) return false;
     if (!(value.collection === null || record(value.collection) && text(value.collection.id) && text(value.collection.name))) return false;
     if (!record(value.capacity) || !timestamp(value.capacity.evaluatedAt) || !Array.isArray(value.capacity.pools)