Add conduct extension to community catalog (#1908)

- Extension ID: conduct
- Version: 1.0.0
- Author: twbrandon7
- Description: Executes a single spec-kit phase via sub-agent delegation to reduce context pollution.

extensions/catalog.community.json

@@ -1,6 +1,6 @@
 {
   "schema_version": "1.0",
-  "updated_at": "2026-03-18T19:53:31Z",
+  "updated_at": "2026-03-19T12:08:20Z",
   "catalog_url": "https://raw.githubusercontent.com/github/spec-kit/main/extensions/catalog.community.json",
   "extensions": {
     "archive": {
@@ -149,6 +149,36 @@
       "created_at": "2026-03-16T00:00:00Z",
       "updated_at": "2026-03-18T00:00:00Z"
     },
+    "conduct": {
+      "name": "Conduct Extension",
+      "id": "conduct",
+      "description": "Executes a single spec-kit phase via sub-agent delegation to reduce context pollution.",
+      "author": "twbrandon7",
+      "version": "1.0.0",
+      "download_url": "https://github.com/twbrandon7/spec-kit-conduct-ext/archive/refs/tags/v1.0.0.zip",
+      "repository": "https://github.com/twbrandon7/spec-kit-conduct-ext",
+      "homepage": "https://github.com/twbrandon7/spec-kit-conduct-ext",
+      "documentation": "https://github.com/twbrandon7/spec-kit-conduct-ext/blob/main/README.md",
+      "changelog": "https://github.com/twbrandon7/spec-kit-conduct-ext/blob/main/CHANGELOG.md",
+      "license": "MIT",
+      "requires": {
+        "speckit_version": ">=0.3.1"
+      },
+      "provides": {
+        "commands": 1,
+        "hooks": 0
+      },
+      "tags": [
+        "conduct",
+        "workflow",
+        "automation"
+      ],
+      "verified": false,
+      "downloads": 0,
+      "stars": 0,
+      "created_at": "2026-03-19T12:08:20Z",
+      "updated_at": "2026-03-19T12:08:20Z"
+    },
     "docguard": {
       "name": "DocGuard \u2014 CDD Enforcement",
       "id": "docguard",