CUB-125: implement real-time SSE/WebSocket in React frontend #46

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overseer merged 2 commits from agent/rex/CUB-125-realtime-sse-clean into dev 2026-05-20 13:14:30 -04:00

2 Commits

Author SHA1 Message Date
010408cc45 CUB-125: address Grimm review — tests, type fixes, error state circuit breaker
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- Add missing 'offline' to AgentStatus union type (types/index.ts)
- Add max-retry circuit breaker to useSSE; error state is now reachable
- Wire typed SSE payloads (SSEPayloadMap discriminated union) into useRealtimeSync
- Add Vitest + 20 unit tests: useSSE lifecycle, back-off, circuit breaker,
  event parsing, cleanup; useRealtimeSync event-to-invalidation mapping
- Rebase on dev to remove stale CUB-119 legacy-deletion commit and align
  CI workflow (dev already consolidated into single dev.yml)
- Tests: npm test → 20/20 pass; Build: npm run build → 0 errors
2026-05-20 12:58:21 -04:00
23f9d4a8fb CUB-125: implement real-time SSE/WebSocket in React frontend
- Add useSSE hook with exponential back-off reconnect (1s → 30s)
- Add useRealtimeSync hook: maps SSE events to React Query invalidation
  (agent.status → agents; agent.task/agent.progress → tasks+agents; fleet.update → all)
- Add SSEContext/SSEProvider so connection status is available app-wide
- Mount SSEProvider in main.tsx inside QueryClientProvider (no polling)
- Show live/connecting/reconnecting/disconnected badge in sidebar + mobile header
- Update SettingsPage: replace polling interval UI with SSE status panel
- Disable React Query polling (staleTime 60s); all updates pushed via SSE

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-20 12:58:21 -04:00