Add ralph extension to community catalog (#1780)

- Extension ID: ralph
- Version: 1.0.0
- Author: Rubiss
- Description: Autonomous implementation loop using AI agent CLI

extensions/catalog.community.json

@@ -1,6 +1,6 @@
 {
   "schema_version": "1.0",
-  "updated_at": "2026-03-06T00:00:00Z",
+  "updated_at": "2026-03-09T00:00:00Z",
   "catalog_url": "https://raw.githubusercontent.com/github/spec-kit/main/extensions/catalog.community.json",
   "extensions": {
     "azure-devops": {
@@ -114,6 +114,42 @@
       "created_at": "2026-03-05T00:00:00Z",
       "updated_at": "2026-03-05T00:00:00Z"
     },
+    "ralph": {
+      "name": "Ralph Loop",
+      "id": "ralph",
+      "description": "Autonomous implementation loop using AI agent CLI.",
+      "author": "Rubiss",
+      "version": "1.0.0",
+      "download_url": "https://github.com/Rubiss/spec-kit-ralph/archive/refs/tags/v1.0.0.zip",
+      "repository": "https://github.com/Rubiss/spec-kit-ralph",
+      "homepage": "https://github.com/Rubiss/spec-kit-ralph",
+      "documentation": "https://github.com/Rubiss/spec-kit-ralph/blob/main/README.md",
+      "changelog": "https://github.com/Rubiss/spec-kit-ralph/blob/main/CHANGELOG.md",
+      "license": "MIT",
+      "requires": {
+        "speckit_version": ">=0.1.0",
+        "tools": [
+          {
+            "name": "copilot",
+            "required": true
+          },
+          {
+            "name": "git",
+            "required": true
+          }
+        ]
+      },
+      "provides": {
+        "commands": 2,
+        "hooks": 1
+      },
+      "tags": ["implementation", "automation", "loop", "copilot"],
+      "verified": false,
+      "downloads": 0,
+      "stars": 0,
+      "created_at": "2026-03-09T00:00:00Z",
+      "updated_at": "2026-03-09T00:00:00Z"
+    },
     "retrospective": {
       "name": "Retrospective Extension",
       "id": "retrospective",