feat: implement metadata catalog database management

AGENTS.md

@@ -1,5 +1,19 @@
 # AGENTS.md
 
+## Agent skills
+
+### Issue tracker
+
+Issues for this repository live in the self-hosted Gitea repository at `https://git.tylconsulting.it/mptyl/ThothII`; use its web UI or authenticated Gitea API. See `docs/agents/issue-tracker.md`.
+
+### Triage labels
+
+Use the canonical labels `needs-triage`, `needs-info`, `ready-for-agent`, `ready-for-human`, and `wontfix`. See `docs/agents/triage-labels.md`.
+
+### Domain docs
+
+This is a single-context repository with root `CONTEXT.md` and `docs/adr/`. See `docs/agents/domain.md`.
+
 This file provides guidance to Codex (Codex.ai/code) when working with code in this repository.
 
 ## Start here