docs(agent): scaffold the agent-skills config as three vault pages

Point the mattpocock-lineage skills (triage, to-tickets, to-spec,
wayfinder) at repo facts instead of a parallel docs/ tree: Gitea is the
issue tracker (credential-safe curl shape, token-only writes), the five
canonical triage roles keep their default label strings (created on the
tracker today), and GLOSSARY.md/docs/adr/ stay lazy with this vault
owning operational facts. AGENTS.md gains the ## Agent skills pointer
block; indices regenerated.

serverAppConfigs-docs/Agent/Domain Docs.md

@@ -0,0 +1,55 @@
+---
+type: reference
+title: Domain Docs
+description: "Consumer rules for GLOSSARY.md and docs/adr/, and where this vault out-ranks them on operational facts."
+tags: [agent, glossary, adr, documentation]
+timestamp: 2026-10-20T00:00:00Z
+---
+
+# Domain Docs
+
+How the engineering skills (`/grill-with-docs`, `/domain-modeling`,
+`/improve-codebase-architecture`, `/to-spec`) should consume this repo's design
+vocabulary when exploring the codebase.
+
+## Before exploring, read these
+
+- **`GLOSSARY.md`** at the repo root
+- **`docs/adr/`**: read ADRs that touch the area you're about to work in
+
+If either doesn't exist, **proceed silently**. Don't flag their absence; don't
+suggest creating them upfront. `/domain-modeling` (reached via
+`/grill-with-docs` and `/improve-codebase-architecture`) creates them lazily
+when terms or decisions actually get resolved. As of 2026-10-20 neither exists;
+this page is the pointer, not a promise.
+
+## Ownership against this vault
+
+This repo already carries `serverAppConfigs-docs/` — the operational knowledge
+base and, per repo law, the owner of operational facts (endpoint shapes, Eras,
+Laws, runbooks). `GLOSSARY.md` / `docs/adr/` hold **design vocabulary and
+decisions**. Where a term is defined in both, the vault page that owns the fact
+wins — one fact, one owner. A glossary entry restating an endpoint number is
+the bug, not the second source.
+
+## Use the glossary's vocabulary
+
+When output names a domain concept (an issue title, a refactor proposal, a
+hypothesis, a test name), use the term as defined in `GLOSSARY.md`. Don't drift
+to synonyms the glossary explicitly avoids.
+
+If the concept you need isn't in the glossary yet, that's a signal: either
+you're inventing language the project doesn't use (reconsider) or there's a
+real gap (note it for `/domain-modeling`).
+
+## Flag ADR conflicts
+
+If output contradicts an existing ADR, surface it explicitly rather than
+silently overriding:
+
+> _Contradicts ADR-0007 (…), but worth reopening because…_
+
+## Related
+
+- [[Issue Tracker]] — where specs and tickets built on this vocabulary are published.
+- [[Agent Docs and Edits]] — the edit-safety rules that apply while touching any doc in this checkout.