## Why
The web UI ships as a separate image served under \`/ui\` (built with \`BASE_PATH=/ui\`). Hitting the bare domain (e.g. \`https://artifactapi.k8s.syd1.au.unkin.net/\`) returned the API's JSON identity blob instead of the app, so browsers never landed on the UI.
## Changes
- Redirect \`GET /\` to \`/ui/\` (302 Found).
- Preserve the former root JSON (\`{"name","version"}\`) at \`/version\`, so health/monitoring can still read the running version.
- Update the server integration test to assert the redirect and the \`/version\` payload.
Reviewed-on: #101
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>
Raises statement coverage of the core packages (all of `internal/` except the interactive `tui/`, plus `pkg/`) from **8.7% to 90.1%**.
## Approach
- **Pure-go unit tests** for all providers, virtual mergers, classifier, config, auth, models, and the API client (httptest).
- **Testcontainers-backed** tests (new `internal/testsupport` helper: Postgres/Redis/MinIO, Ryuk disabled) for database, storage, cache, the proxy engine, the GC, and a full-stack `server` test that drives the whole HTTP API. These `t.Skip` when Docker is absent so `go test` still runs locally without it.
## Measuring
```
go test -coverpkg=./internal/...,./pkg/... -coverprofile=cover.out ./internal/... ./pkg/...
grep -v /internal/tui/ cover.out | go tool cover -func=/dev/stdin | tail -1 # 90.1%
```
Run with `-p 1` (containers are heavy).
## Notes
- The interactive `tui/` package and `cmd/main` are excluded from the target per the agreed scope.
- Some defensive error branches are covered via fault injection (closed DB pool, killing MinIO mid-upload).
Reviewed-on: #98
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>
unkinben