Files
sencho/backend
Anso f5eb993f48 refactor(backend): add tests then extract metrics and image-updates routers (phase 4b follow-up) (#738)
Wraps up Phase 4 Round B by tackling the two deferred groups. 25 new
integration tests land first and run green against the inline monolith,
then each group is extracted byte-for-byte.

index.ts drops from ~3,678 to ~3,231 lines; test count rises 1,320 → 1,345.

New coverage:
- metrics-routes.test.ts (11) — auth + shape checks for /api/stats,
  /api/metrics/historical, /api/system/stats, /api/system/cache-stats
  (admin-only), and SSE headers for /api/logs/global/stream
- image-updates-routes.test.ts (14) — auth, admin gating, rate-limit
  tolerance on /refresh, fleet aggregation, /auto-update/execute input
  validation and no-stacks short-circuit

New route files:
- routes/metrics.ts — /stats, /metrics/historical, /logs/global (+ SSE
  /stream), /system/stats, /system/cache-stats. Mounted at /api so the
  mixed sub-paths line up.
- routes/imageUpdates.ts — /api/image-updates CRUD + fleet aggregation,
  plus a separate autoUpdateRouter mounted at /api/auto-update that
  owns the /execute handler. Same split pattern as license.ts +
  systemUpdateRouter.

index.ts trims unused imports left behind by the extraction:
globalDockerNetwork, si, STATS_CACHE_TTL_MS, SYSTEM_STATS_CACHE_TTL_MS,
GlobalLogEntry + log-parsing helpers.
2026-04-23 21:49:58 -04:00
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