Update Architecture Guard extension to v2.3.6

Update architecture-guard extension submitted by @DyanGalih to:
- extensions/catalog.community.json (version, download_url, repository, description, etc.)
- docs/community/extensions.md community extensions table

Closes #4219

Assisted-by: GitHub Copilot (model: claude-sonnet-4.6, autonomous)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: github-actions[bot]

docs/community/extensions.md

@@ -35,7 +35,7 @@ The following community-contributed extensions are available in [`catalog.commun
 | API Evolve | Managed API contract evolution — breaking-change detection, semver enforcement, deprecation orchestration, and lifecycle gates across REST, GraphQL, and gRPC | `process` | Read+Write | [spec-kit-api-evolve](https://github.com/Quratulain-bilal/spec-kit-api-evolve) |
 | Architect Impact Previewer | Predicts architectural impact, complexity, and risks of proposed changes before implementation. | `visibility` | Read-only | [spec-kit-architect-preview](https://github.com/UmmeHabiba1312/spec-kit-architect-preview) |
 | Architecture Governance | Keep specs, code & ADRs in sync: citation slots + a read-only, fail-closed validator | `docs` | Read+Write | [spec-kit-arch-governance](https://github.com/ashbrener/spec-kit-arch-governance) |
-| Architecture Guard | Framework-agnostic architecture review extension for validating implementation against governance and architecture constitutions, detecting architectural drift, and generating non-blocking refactor tasks | `process` | Read+Write | [spec-kit-architecture-guard](https://github.com/DyanGalih/spec-kit-architecture-guard) |
+| Architecture Guard | Framework-agnostic architecture governance for Spec Kit workflows, detecting drift, enforcing architectural rules, and generating actionable refactor tasks | `process` | Read+Write | [architecture-guard](https://github.com/DyanGalih/architecture-guard) |
 | Architecture Workflow | Generate or reverse project-level 4+1 architecture views with per-view and full-workflow commands | `docs` | Read+Write | [spec-kit-arch](https://github.com/bigsmartben/spec-kit-arch) |
 | Archive Extension | Archive merged features into main project memory, resolving gaps and conflicts. | `docs` | Read+Write | [spec-kit-archive](https://github.com/stn1slv/spec-kit-archive) |
 | ASCII Diagram Renderer | Renders hand-drawn ASCII/Unicode diagrams (state machine, architecture, flow, coverage map) of what spec/plan/tasks/analyze already say — plain text, no Mermaid renderer needed | `docs` | Read+Write | [spec-kit-ascii-diagram](https://github.com/MRZHUH/spec-kit-ascii-diagram) |