Tests fixes, audit progress, UI completions

src/Attestor/__Tests/StellaOps.Attestor.Persistence.Tests/AGENTS.md

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+# Attestor Persistence Tests AGENTS
+
+## Purpose & Scope
+- Working directory: `src/Attestor/__Tests/StellaOps.Attestor.Persistence.Tests/`.
+- Roles: QA automation, backend engineer.
+- Focus: trust anchor matching, EF Core persistence behaviors, and migration validation.
+
+## Required Reading (treat as read before DOING)
+- `docs/modules/attestor/architecture.md`
+- `docs/db/SPECIFICATION.md`
+- `docs/db/MIGRATION_STRATEGY.md`
+- Relevant sprint files.
+
+## Working Agreements
+- Keep tests deterministic (fixed time/IDs) and avoid wall-clock time.
+- Include coverage for repository behaviors and schema defaults.
+- Perf harness updates should stay deterministic and documented.
+- Update `docs/implplan/SPRINT_*.md` and the local `TASKS.md` when starting or completing work.
+
+## Testing
+- Use xUnit + FluentAssertions + NSubstitute; prefer TestKit helpers for temp paths.
+- Cover trust anchor matcher specificity, active/inactive anchors, and predicate/key allowlists.

src/Attestor/__Tests/StellaOps.Attestor.Persistence.Tests/TASKS.md

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+# Attestor Persistence Tests Task Board
+
+This board mirrors active sprint tasks for this module.
+Source of truth: `docs/implplan/SPRINT_20251229_049_BE_csproj_audit_maint_tests.md`.
+
+| Task ID | Status | Notes |
+| --- | --- | --- |
+| AUDIT-0061-M | DONE | Maintainability audit for StellaOps.Attestor.Persistence.Tests. |
+| AUDIT-0061-T | DONE | Test coverage audit for StellaOps.Attestor.Persistence.Tests. |
+| AUDIT-0061-A | TODO | Pending approval for changes. |