refactor(root): move root artefacts to their canonical locations

.github/CONTRIBUTING.md

@@ -0,0 +1,103 @@
+# Clone the repository
+
+git clone <https://github.com/hyperpolymath/sanctify-php.git> cd
+sanctify-php
+
+# Using Nix (recommended for reproducibility)
+
+nix develop
+
+# Or using toolbox/distrobox
+
+toolbox create sanctify-php-dev toolbox enter sanctify-php-dev \#
+Install dependencies manually
+
+# Verify setup
+
+just check \# or: cargo check / mix compile / etc. just test \# Run test
+suite
+
+
+    ### Repository Structure
+
+sanctify-php/ ├── src/ \# Source code (Perimeter 1-2) ├── lib/ \#
+Library code (Perimeter 1-2) ├── extensions/ \# Extensions (Perimeter 2)
+├── plugins/ \# Plugins (Perimeter 2) ├── tools/ \# Tooling (Perimeter
+2) ├── docs/ \# Documentation (Perimeter 3) │ ├── architecture/ \# ADRs,
+specs (Perimeter 2) │ └── proposals/ \# RFCs (Perimeter 3) ├── examples/
+\# Examples (Perimeter 3) ├── spec/ \# Spec tests (Perimeter 3) ├──
+tests/ \# Test suite (Perimeter 2-3) ├── .well-known/ \# Protocol files
+(Perimeter 1-3) ├── .github/ \# GitHub config (Perimeter 1) │ ├──
+ISSUE_TEMPLATE/ │ └── workflows/ ├── CHANGELOG.md ├── CODE_OF_CONDUCT.md
+├── CONTRIBUTING.md \# This file ├── GOVERNANCE.md ├── LICENSE ├──
+MAINTAINERS.md ├── README.adoc ├── SECURITY.md ├── flake.nix \# Nix
+flake (Perimeter 1) └── Justfile \# Task runner (Perimeter 1)
+
+
+    ---
+
+    ## How to Contribute
+
+    ### Reporting Bugs
+
+    **Before reporting**:
+    1. Search existing issues
+    2. Check if it's already fixed in `main`
+    3. Determine which perimeter the bug affects
+
+    **When reporting**:
+
+    Use the [bug report template](.github/ISSUE_TEMPLATE/bug_report.md) and include:
+
+    - Clear, descriptive title
+    - Environment details (OS, versions, toolchain)
+    - Steps to reproduce
+    - Expected vs actual behaviour
+    - Logs, screenshots, or minimal reproduction
+
+    ### Suggesting Features
+
+    **Before suggesting**:
+    1. Check the [roadmap](ROADMAP.md) if available
+    2. Search existing issues and discussions
+    3. Consider which perimeter the feature belongs to
+
+    **When suggesting**:
+
+    Use the [feature request template](.github/ISSUE_TEMPLATE/feature_request.md) and include:
+
+    - Problem statement (what pain point does this solve?)
+    - Proposed solution
+    - Alternatives considered
+    - Which perimeter this affects
+
+    ### Your First Contribution
+
+    Look for issues labelled:
+
+    - [`good first issue`](https://github.com/hyperpolymath/sanctify-php/labels/good%20first%20issue) — Simple Perimeter 3 tasks
+    - [`help wanted`](https://github.com/hyperpolymath/sanctify-php/labels/help%20wanted) — Community help needed
+    - [`documentation`](https://github.com/hyperpolymath/sanctify-php/labels/documentation) — Docs improvements
+    - [`perimeter-3`](https://github.com/hyperpolymath/sanctify-php/labels/perimeter-3) — Community sandbox scope
+
+    ---
+
+    ## Development Workflow
+
+    ### Branch Naming
+
+docs/short-description \# Documentation (P3) test/what-added \# Test
+additions (P3) feat/short-description \# New features (P2)
+fix/issue-number-description \# Bug fixes (P2) refactor/what-changed \#
+Code improvements (P2) security/what-fixed \# Security fixes (P1-2)
+
+
+    ### Commit Messages
+
+    We follow [Conventional Commits](https://www.conventionalcommits.org/):
+
+():
+
+\[optional body\]
+
+\[optional footer\]

.github/workflows/dogfood-gate.yml

@@ -39,7 +39,7 @@ jobs:
 
       - name: Validate A2ML manifests
         if: steps.detect.outputs.count > 0
-        run: bash .githooks/validate-a2ml.sh
+        run: bash .github/hooks/validate-a2ml.sh
       - name: Write summary
         run: |
           A2ML_COUNT="${{ steps.detect.outputs.count }}"
@@ -83,7 +83,7 @@ jobs:
 
       - name: Validate K9 contracts
         if: steps.detect.outputs.k9_count > 0
-        run: bash .githooks/validate-k9.sh
+        run: bash .github/hooks/validate-k9.sh
       - name: Write summary
         run: |
           K9_COUNT="${{ steps.detect.outputs.k9_count }}"

QUICKSTART-MAINTAINER.adoc

@@ -31,7 +31,7 @@ Output: `{{BUILD_OUTPUT_PATH}}`
 
 [source,bash]
 ----
-guix build -f guix.scm
+guix build -f build/guix.scm
 ----
 
 === Nix

QUICKSTART.adoc

@@ -452,7 +452,7 @@ sudo apt-get install libgmp-dev libffi-dev zlib1g-dev
 * Read the full documentation: link:docs/USER-GUIDE.adoc[User Guide]
 * Explore advanced features: link:docs/ADVANCED.adoc[Advanced Usage]
 * Learn about WordPress integration: link:docs/WORDPRESS.adoc[WordPress Guide]
-* Contribute to development: link:CONTRIBUTING.adoc[Contributing Guide]
+* Contribute to development: link:.github/CONTRIBUTING.md[Contributing Guide]
 * Report issues: https://github.com/hyperpolymath/sanctify-php/issues
 
 == Support

README.adoc

@@ -51,7 +51,7 @@ cabal install
 nix build
 
 # Using Guix
-guix build -f guix.scm
+guix build -f build/guix.scm
 ----
 
 == Usage

docs/accessibility/README.adoc

@@ -243,7 +243,7 @@ Burble is committed to:
 * Supporting screen readers and other assistive technologies
 * Continuous improvement based on user feedback
 
-We welcome contributions to improve accessibility. See our link:../CONTRIBUTING.adoc[Contributing Guide] for details.
+We welcome contributions to improve accessibility. See our link:../../.github/CONTRIBUTING.md[Contributing Guide] for details.
 
 == Related Documents