feat: register jira preset in community catalog (#2224)

* feat: register jira preset in community catalog

Adds luno/spec-kit-preset-jira — overrides speckit.taskstoissues to
create Jira issues instead of GitHub Issues.

See #2223 for context on why this is a preset rather than an extension.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: use immutable tag URL and sort jira preset alphabetically

- Change download_url from heads/main to refs/tags/v1.0.0 for reproducible installs
- Move jira entry to correct alphabetical position in presets object

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Ed Harrod <1381991+echarrod@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

presets/catalog.community.json

@@ -1,6 +1,6 @@
 {
   "schema_version": "1.0",
-  "updated_at": "2026-04-13T00:00:00Z",
+  "updated_at": "2026-04-15T00:00:00Z",
   "catalog_url": "https://raw.githubusercontent.com/github/spec-kit/main/presets/catalog.community.json",
   "presets": {
     "aide-in-place": {
@@ -141,7 +141,34 @@
       ],
       "created_at": "2026-04-09T08:00:00Z",
       "updated_at": "2026-04-19T08:00:00Z"
-    },    
+    },
+    "jira": {
+      "name": "Jira Issue Tracking",
+      "id": "jira",
+      "version": "1.0.0",
+      "description": "Overrides speckit.taskstoissues to create Jira epics, stories, and tasks instead of GitHub Issues via Atlassian MCP tools.",
+      "author": "luno",
+      "repository": "https://github.com/luno/spec-kit-preset-jira",
+      "download_url": "https://github.com/luno/spec-kit-preset-jira/archive/refs/tags/v1.0.0.zip",
+      "homepage": "https://github.com/luno/spec-kit-preset-jira",
+      "documentation": "https://github.com/luno/spec-kit-preset-jira/blob/main/README.md",
+      "license": "MIT",
+      "requires": {
+        "speckit_version": ">=0.1.0"
+      },
+      "provides": {
+        "templates": 0,
+        "commands": 1
+      },
+      "tags": [
+        "jira",
+        "atlassian",
+        "issue-tracking",
+        "preset"
+      ],
+      "created_at": "2026-04-15T00:00:00Z",
+      "updated_at": "2026-04-15T00:00:00Z"
+    },
     "multi-repo-branching": {
       "name": "Multi-Repo Branching",
       "id": "multi-repo-branching",