refactor(pipeline): move workflow to external repo, register in community catalog

Author: domattioli

workflows/catalog.community.json

@@ -1,6 +1,27 @@
 {
   "schema_version": "1.0",
-  "updated_at": "2026-04-10T00:00:00Z",
+  "updated_at": "2026-07-10T00:00:00Z",
   "catalog_url": "https://raw.githubusercontent.com/github/spec-kit/main/workflows/catalog.community.json",
-  "workflows": {}
+  "workflows": {
+    "pipeline": {
+      "id": "pipeline",
+      "name": "Guided SDD Pipeline",
+      "description": "Chains specify, clarify, plan, tasks, analyze, implement, and converge into one guided run with a single clarify gate and a post-implement convergence loop",
+      "author": "domattioli",
+      "version": "1.0.0",
+      "url": "https://raw.githubusercontent.com/domattioli/spec-kit-workflow-pipeline/v1.0.0/workflow.yml",
+      "repository": "https://github.com/domattioli/spec-kit-workflow-pipeline",
+      "license": "MIT",
+      "requires": {
+        "speckit_version": ">=0.8.5"
+      },
+      "tags": [
+        "sdd",
+        "pipeline",
+        "automation"
+      ],
+      "created_at": "2026-07-10T00:00:00Z",
+      "updated_at": "2026-07-10T00:00:00Z"
+    }
+  }
 }