ServerController had grown to hold its own status cache, version-list
TTL cache, history-bucket whitelist, and the loop that drove all three
— concerns that belong in the service layer. Pull them out:
- lastStatus + the @2s refresh become ServerService.RefreshStatus and
ServerService.LastStatus; the controller's cron now just orchestrates
the cross-service side effects (xrayMetrics sample, websocket broadcast).
- The 15-minute Xray-versions cache (with stale-on-error fallback) moves
into ServerService.GetXrayVersionsCached, collapsing the controller
handler to a single call.
- The freedom/blackhole outbound-tag walk used by /xraylogs becomes
ServerService.GetDefaultLogOutboundTags.
- The allowed-history-bucket whitelist moves to package-level
service.IsAllowedHistoryBucket, so both NodeController and
ServerController validate against the same list.
Net result: web/controller/server.go drops from 458 to 365 lines and
contains only HTTP wiring + presentation-y side effects.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>