arda skill: initial import

Naming registry for the home-v1 homelab — Middle-earth names for every
infrastructure component. Records the naming convention, the names in use,
reserved names (erebor for the NAS), and the outstanding renames.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

README.md

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+# arda
+
+Naming registry for the **home-v1 homelab** — the authoritative record of what every
+infrastructure component is called, using Middle-earth names.
+
+Arda is the world itself in Tolkien's legendarium; every component of the estate sits
+inside it.
+
+The skill covers:
+
+- the **naming convention** for domain repositories, sub-domains, and cluster nodes
+- the **registry** of names currently in use, with each name's role and address
+- **reserved** names not yet bound to a component (`erebor` for the NAS, plus `arnor-v1`
+  and `rohan-v1`)
+- **pending renames** — components still carrying non-Tolkien names
+- the rules for **assigning a new name**, and a vetted candidate pool in
+  [`references/name-pool.md`](references/name-pool.md)
+
+This skill lives only in the [home-v1-skills-code-agent](https://gitea.lego-cloud.eu/home-v1-skills-code-agent)
+organisation on Gitea, so it has a single remote.
+
+See [SKILL.md](SKILL.md).