refactor: migrate Markdown to AsciiDoc

ARCHITECTURE.adoc

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+== Architecture
+
+=== Overview
+
+This repository follows a modular, maintainable architecture designed
+for clarity, scalability, and long-term sustainability.
+
+=== Directory Structure
+
+....
+.
+├── src/           # Source code
+├── tests/        # Test suites
+├── docs/         # Documentation
+├── scripts/      # Utility scripts
+├── config/       # Configuration files
+├── LICENSE       # License file
+├── LICENSES/     # Full license texts
+└── README.adoc   # Project documentation
+....
+
+=== Design Principles
+
+* *Separation of Concerns*: Each module has a single responsibility
+* *Testability*: Code is written to be easily testable
+* *Documentation*: All public APIs are documented
+* *Configuration*: Environment-specific settings are externalized
+
+=== Dependencies
+
+* External dependencies are minimized and clearly declared
+* Version pinning is used for reproducibility
+
+=== Security Considerations
+
+* Sensitive data is never committed to the repository
+* Secrets are managed through environment variables or secure vaults
+* Regular dependency audits are performed
+
+=== Maintainability
+
+* Code follows consistent style guidelines
+* Pull requests require review and CI checks
+* Issues and discussions are tracked transparently
+
+'''''
+
+_Last updated: 2026-07-18_

CHANGELOG.adoc

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+== Changelog
+
+All notable changes to `+nickel-augmentation+` will be documented in
+this file.
+
+This file is generated from conventional commits by the
+https://github.com/hyperpolymath/standards/blob/main/.github/workflows/changelog-reusable.yml[`+changelog-reusable.yml+`]
+workflow (`+hyperpolymath/standards#206+`). Adopt the workflow in this
+repo’s CI to keep this file in sync automatically — see
+https://github.com/hyperpolymath/standards/blob/main/templates/cliff.toml[`+templates/cliff.toml+`]
+for the canonical config.
+
+The format follows https://keepachangelog.com/en/1.1.0/[Keep a
+Changelog]; this project aims to follow
+https://semver.org/spec/v2.0.0.html[Semantic Versioning].
+
+=== [Unreleased]
+
+==== Added
+
+* feat(crg): add crg-grade and crg-badge justfile recipes
+* feat: nickel-augmentation 1.0.0 — proven bridge, K9 signatures, 48
+tests
+* feat: proven bridge — Nickel contracts backed by Idris2 formal proofs
+* feat: 7 new reporter rules, K9 runner, 29 integration tests
+* feat: add stapeln.toml container definition
+* feat: deploy UX Manifesto infrastructure
+* feat: add CLADE.a2ml — clade taxonomy declaration
+* feat: add Nickel contract library, config-reporter CLI, and wire
+Justfile
+* feat: add RSR template structure and project metadata
+* feat: consolidate nickel repos into nickel-augmentation monorepo
+
+==== Fixed
+
+* fix(ci): bump a2ml/k9-validate-action pins to canonical (standards#85)
+(#9)
+* fix(ci): sync hypatia-scan.yml to canonical (kill cd-scanner build
+drift) (#8)
+* fix(ci): build Hypatia escript from repo root (estate dogfood drift)
+* fix(ci): Phase-2 fleet submission must not fail the security gate (#5)
+* fix(ci): repair YAML block-scalar in workflow-linter Check Permissions
+step (#3)
+* fix(scorecard): enforce granular permissions and add fuzzing
+placeholder
+* fix(ci): Resolve workflow-linter self-matching and metadata issues
+* fix: correct email jonathan.jewell → j.d.a.jewell
+* fix: SPDX headers (AGPL→PMPL), email, author name
+
+==== Changed
+
+* refactor: migrate 6SCM → 6A2 (.scm → .a2ml format)
+
+==== Documentation
+
+* docs: substantive CRG C annotation (EXPLAINME.adoc)
+* docs: add TEST-NEEDS.md and/or PROOF-NEEDS.md from audit
+* docs: add EXPLAINME.adoc — prove-it file backing README claims
+
+==== CI
+
+* ci: redistribute concurrency-cancel guard to read-only check workflows
+(#12)
+* ci: fix nonexistent actions/upload-artifact SHA pin (#7)
+* ci: bump actions/upload-artifact SHA to current v4 (#2)
+* ci: SHA-pin hyperpolymath validate-actions in dogfood-gate
+* ci: restore Dependabot security path + wire auto-merge
+
+=== Pre-history
+
+Prior commits to this file’s introduction are recorded in git history
+but not formally classified into Keep-a-Changelog sections. To backfill,
+run `+git cliff -o CHANGELOG.md+` locally using the canonical
+https://github.com/hyperpolymath/standards/blob/main/templates/cliff.toml[`+cliff.toml+`]
+— this is one-shot mechanical work.
+
+'''''