- Add fmt-check target for read-only format checking
- Add hooks target to install pre-commit hook running make check
- Add docker target to run docker build
- Add 30-second timeout to test and check targets
- Add new targets to .PHONY list
Full project structure following upaas conventions: uber/fx DI, go-chi
routing, slog logging, Viper config. State persisted as JSON file with
per-nameserver record tracking for inconsistency detection. Stub
implementations for resolver, portcheck, tlscheck, and watcher.
