chore: update community catalog with latest extension versions

- Update memory-md from 0.7.9 to 0.8.0
- Update architecture-guard from 1.6.7 to 1.8.0

Author: DyanGalih

extensions/catalog.community.json

@@ -105,8 +105,8 @@
       "id": "architecture-guard",
       "description": "Continuous architecture governance for AI-assisted development. Reviews specs, plans, and code for architecture drift, producing structured refactor tasks and evolution proposals.",
       "author": "DyanGalih",
-      "version": "1.6.7",
-      "download_url": "https://github.com/DyanGalih/spec-kit-architecture-guard/archive/refs/tags/v1.6.7.zip",
+      "version": "1.8.0",
+      "download_url": "https://github.com/DyanGalih/spec-kit-architecture-guard/archive/refs/tags/v1.8.0.zip",
       "repository": "https://github.com/DyanGalih/spec-kit-architecture-guard",
       "homepage": "https://github.com/DyanGalih/spec-kit-architecture-guard",
       "documentation": "https://github.com/DyanGalih/spec-kit-architecture-guard/blob/main/README.md",
@@ -1383,8 +1383,8 @@
       "id": "memory-md",
       "description": "Spec Kit extension for repository-native Markdown memory that captures durable decisions, bugs, and project context",
       "author": "DyanGalih",
-      "version": "0.7.9",
-      "download_url": "https://github.com/DyanGalih/spec-kit-memory-hub/archive/refs/tags/v0.7.9.zip",
+      "version": "0.8.0",
+      "download_url": "https://github.com/DyanGalih/spec-kit-memory-hub/archive/refs/tags/v0.8.0.zip",
       "repository": "https://github.com/DyanGalih/spec-kit-memory-hub",
       "homepage": "https://github.com/DyanGalih/spec-kit-memory-hub",
       "documentation": "https://github.com/DyanGalih/spec-kit-memory-hub/blob/main/README.md",