- Refactor dashboard/collector/collector.go to use config.GetScrapeTargets()
- Refactor dashboard/api/router.go to use config.GetScrapeTargets()
- Add dashboard/config/config.go with DefaultScrapeTarget set to devpod namespace
- Remove hardcoded mcp namespace defaults from both files
Acceptance: No occurrence of zai-proxy.mcp.svc.cluster.local remains in dashboard Go code, both DefaultConfig structs use devpod default, existing SCRAPE_TARGETS env override unchanged.
