merge: incorporate latest dev changes into phase1-perf branch

Merge origin/dev to pick up service isolation (concurrently dev script,
turbopack aliases, instrumentation simplification), PostHog analytics,
color scheme, and other dev improvements while preserving all Phase 1
performance work (Suspense boundaries, cache components, Redis handler,
integration barrel diet, cache invalidation).

packages/widgets/src/refetch-intervals.ts

@@ -6,6 +6,7 @@
  * initial client graph, even before a board has rendered one widget.
  */
 export const widgetQueryRefetchIntervals = [
+  { queryKey: [["docker", "getContainers"]], intervalSeconds: 30 },
   { queryKey: [["widget", "dnsHole"]], intervalSeconds: 5 },
   { queryKey: [["widget", "downloads"]], intervalSeconds: 5 },
   { queryKey: [["widget", "firewall"]], intervalSeconds: 5 },