Adopt workspace-wide agent standards; retire sow-docs (#1)

Part of the workspace-wide standards rollout. Establishes where work lives (issues vs ADRs vs standing law), scaffolds `docs/agents/` for the engineering skills, and adopts ADR-0001 locally. See `sow-platform` ADR-0021 for the `sow-docs` retirement.Reviewed-on: #1

Co-authored-by: vickydotbat <vickydotbat@tutamail.com>

docs/agents/triage-labels.md

@@ -0,0 +1,15 @@
+# Triage Labels
+
+The skills speak in terms of five canonical triage roles. This file maps those roles to the actual label strings used in this repo's issue tracker (Gitea — see `issue-tracker.md` for how to apply labels with `tea`).
+
+| Label in mattpocock/skills | Label in our tracker | Meaning                                  |
+| -------------------------- | -------------------- | ---------------------------------------- |
+| `needs-triage`             | `needs-triage`       | Maintainer needs to evaluate this issue  |
+| `needs-info`               | `needs-info`         | Waiting on reporter for more information |
+| `ready-for-agent`          | `ready-for-agent`    | Fully specified, ready for an AFK agent  |
+| `ready-for-human`          | `ready-for-human`    | Requires human implementation            |
+| `wontfix`                  | `wontfix`            | Will not be actioned                     |
+
+When a skill mentions a role (e.g. "apply the AFK-ready triage label"), use the corresponding label string from this table.
+
+Edit the right-hand column to match whatever vocabulary you actually use.