Add AppProject examples

- [ ] Create an app that is restricted by cluster resource allow list and deploys unallowed permissions
- [ ] Create an app that is restricted by namespace/cluster destinations
- [ ] Create an app that is restricted by a repo url
- [ ] Create a Global project that is inherited by others
- [ ] Create a project showing the service account impersonation
- [ ] Create a project with sync windows
- [ ] Create a project with examples of Roles

Review the repository's existing AppProject examples and map each checklist item to a concrete example. Verify the resource, destination, repository, inheritance, impersonation, sync-window, and Roles scenarios against the issue requirements. Done means every listed scenario has a working example checked off.

Written by the indexing model from the issue text.