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.
Anso