fix(ui): deep audit pass — palette navigation, crash fix, honest badges

- CommandPalette: full route navigation, project deep-links fetched on
  open, Create group only where onAddService is wired, dead Connect
  items removed, decorative kbd hints dropped; workspace passes its own
  view targets
- NodeDetailPage crash: container status arrives as a Docker state
  object, not a string — flattened in listAgentContainers and guarded
  at render for persisted-cache payloads
- env badge reflects import.meta.env.MODE instead of hardcoded
  'production'
- Relative times capped: >1y or future timestamps render 'n/a'/'—'
  (zero-time heartbeats no longer show 739898d ago)
- Post-auth and setup redirects land on / (dashboard is the index)

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

app/frontend/src/lib/time.ts

@@ -13,6 +13,11 @@ export function formatRelative(iso?: string): string {
   const hour = 60 * minute;
   const day = 24 * hour;
 
+  // Future-dated or year-plus-old timestamps are effectively meaningless —
+  // surface them as absent rather than "739898d ago".
+  if (diffMs < 0 || diffMs > 365 * day) {
+    return 'n/a';
+  }
   if (diffMs < minute) {
     return 'just now';
   }