Scaffold Cloudron packaging workspace

templates/cloudron-app/metadata.json.j2

@@ -0,0 +1,9 @@
+{
+  "slug": "{{ app_slug }}",
+  "title": "{{ app_title }}",
+  "issue": "{{ app_issue }}",
+  "repo": "{{ app_repo }}",
+  "additionalRepos": {% if additional_repos_json != '[]' %}{{ additional_repos_json | indent(2, True) }}{% else %}[]{% endif %},
+  "created": "{{ generated_at }}",
+  "notes": "TODO: capture packaging notes"
+}