feat: register spec-kit-iterate extension (#1887)

* feat: register spec-kit-iterate extension

* fix: copilot review

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Manfred Riem <15701806+mnriem@users.noreply.github.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

extensions/catalog.community.json

@@ -253,6 +253,36 @@
       "created_at": "2026-03-06T00:00:00Z",
       "updated_at": "2026-03-06T00:00:00Z"
     },
+    "iterate": {
+      "name": "Iterate",
+      "id": "iterate",
+      "description": "Iterate on spec documents with a two-phase define-and-apply workflow — refine specs mid-implementation and go straight back to building",
+      "author": "Vianca Martinez",
+      "version": "2.0.0",
+      "download_url": "https://github.com/imviancagrace/spec-kit-iterate/archive/refs/tags/v2.0.0.zip",
+      "repository": "https://github.com/imviancagrace/spec-kit-iterate",
+      "homepage": "https://github.com/imviancagrace/spec-kit-iterate",
+      "documentation": "https://github.com/imviancagrace/spec-kit-iterate/blob/main/README.md",
+      "changelog": "https://github.com/imviancagrace/spec-kit-iterate/blob/main/CHANGELOG.md",
+      "license": "MIT",
+      "requires": {
+        "speckit_version": ">=0.1.0"
+      },
+      "provides": {
+        "commands": 2,
+        "hooks": 0
+      },
+      "tags": [
+        "iteration",
+        "change-management",
+        "spec-maintenance"
+      ],
+      "verified": false,
+      "downloads": 0,
+      "stars": 0,
+      "created_at": "2026-03-17T00:00:00Z",
+      "updated_at": "2026-03-17T00:00:00Z"
+    },
     "jira": {
       "name": "Jira Integration",
       "id": "jira",