[extension] Update DocGuard — CDD Enforcement extension to v0.32.0 (#3489)

* Update DocGuard — CDD Enforcement extension to v0.32.0

Update docguard extension submitted by @raccioly:
- extensions/catalog.community.json (version, download_url, description, updated_at)
- docs/community/extensions.md community extensions table

Closes #3483

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix: add npx and specify to docguard requires.tools in catalog

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* fix: shorten docguard description to ≤200 chars and correct validator count to 24

- Description was 275 chars, now 196 (under the 200-char catalog limit)
- Change "27 validators" → "24 validators" to match v0.32.0 README
- Applied to both extensions/catalog.community.json and docs/community/extensions.md

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---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>

extensions/catalog.community.json

@@ -1106,10 +1106,10 @@
     "docguard": {
       "name": "DocGuard — CDD Enforcement",
       "id": "docguard",
-      "description": "The only doc-integrity engine with an MCP server, SARIF output, and a deterministic zero-LLM core. Validates, scores, and traces documentation against code — 24 validators, stable finding codes, GitHub Action with PR annotations, spec-kit hooks. Pure Node.js, one pinned dep.",
+      "description": "Doc-integrity engine with MCP server, SARIF output, and zero-LLM core. Validates, scores, and traces documentation against code — 24 validators, stable finding codes, spec-kit hooks. Pure Node.js.",
       "author": "raccioly",
-      "version": "0.30.0",
-      "download_url": "https://github.com/raccioly/docguard/releases/download/v0.30.0/spec-kit-docguard-v0.30.0.zip",
+      "version": "0.32.0",
+      "download_url": "https://github.com/raccioly/docguard/releases/download/v0.32.0/spec-kit-docguard-v0.32.0.zip",
       "repository": "https://github.com/raccioly/docguard",
       "homepage": "https://www.npmjs.com/package/docguard-cli",
       "documentation": "https://github.com/raccioly/docguard/blob/main/extensions/spec-kit-docguard/README.md",
@@ -1124,6 +1124,14 @@
             "name": "node",
             "version": ">=18.0.0",
             "required": true
+          },
+          {
+            "name": "npx",
+            "required": true
+          },
+          {
+            "name": "specify",
+            "required": false
           }
         ]
       },
@@ -1145,7 +1153,7 @@
       "downloads": 0,
       "stars": 0,
       "created_at": "2026-03-13T00:00:00Z",
-      "updated_at": "2026-07-06T00:00:00Z"
+      "updated_at": "2026-07-13T00:00:00Z"
     },
     "doctor": {
       "name": "Project Health Check",