docs: remove stale ROADMAP.md, roadmap is in README (#66)

ROADMAP.md

@@ -1,38 +0,0 @@
-# Roadmap
-
-> This roadmap reflects current priorities. It may change based on community feedback.
-
-## Recently Completed
-
-- **v0.2.32** — Docker dashboard fix for namespaced images, `library/` auto-prepend for Hub official images
-- **v0.2.31** — npm full proxy (URL rewriting, scoped packages, publish, SHA-256 integrity cache, metadata TTL)
-- **v0.2.29** — Upstream authentication for all protocols (Docker, Maven, npm, PyPI)
-
-## In Progress
-
-- **`nora mirror`** — Pre-fetch dependencies from lockfiles for air-gapped environments ([#40](https://github.com/getnora-io/nora/issues/40))
-  - npm: `package-lock.json` (v1/v2/v3)
-  - pip: `requirements.txt`
-  - cargo: `Cargo.lock`
-  - maven: dependency list
-
-## Next Up
-
-- **Consistent env var naming** — Unify `NORA_*_PROXY` / `NORA_*_UPSTREAMS` across all protocols ([#39](https://github.com/getnora-io/nora/issues/39))
-- **Package blocklist** — Deny specific packages or versions via config ([#41](https://github.com/getnora-io/nora/issues/41))
-- **Multiple upstreams for npm/PyPI** — Same as Maven already supports
-- **v1.0.0 release** — Stable API, production-ready
-
-## Future
-
-- Docker image mirroring ([#42](https://github.com/getnora-io/nora/issues/42))
-- Virtual repositories via config (named endpoints with custom search order)
-- Path-based ACL (per-namespace write permissions)
-- OIDC/LDAP authentication
-- HA mode (stateless API + external database)
-- Golang modules proxy
-- Content trust (Cosign/Notation verification)
-
-## How to Influence
-
-Open an issue or join [Telegram](https://t.me/getnora) to discuss priorities.