Tests fixes, audit progress, UI completions

src/Aoc/__Libraries/StellaOps.Aoc/AGENTS.md

@@ -0,0 +1,20 @@
+# AOC Guard Library Charter
+
+## Working Directory
+- `src/Aoc/__Libraries/StellaOps.Aoc`
+
+## Scope
+- AOC guard validation, violations, and error payload mapping.
+
+## Required Reading
+- `docs/aoc/aoc-guardrails.md`
+- `docs/security/aoc-invariants.md`
+- `docs/modules/policy/design/policy-aoc-linting-rules.md`
+- `src/Aoc/AGENTS.md`
+
+## Working Agreements
+- Update sprint tracker and local `TASKS.md`.
+- Keep validation deterministic and stable across runs.
+
+## Testing Rules
+- Cover required/allowed fields, signature metadata validation, and violation ordering.