Scaffold Cloudron packaging workspace

templates/cloudron-app/README.md.j2

@@ -0,0 +1,20 @@
+# {{ app_title }} on Cloudron
+
+- **Upstream repository**: {{ app_repo }}
+- **Implementation issue**: {{ app_issue }}
+- **Generated**: {{ generated_at }} UTC
+
+## Packaging Checklist
+
+1. Map upstream services (databases, caches, workers) to Cloudron addons; remove unused entries from `optionalAddons` and enable required ones under `addons`.
+2. Implement the multi-stage build in `Dockerfile` to fetch/compile the correct release of {{ app_title }}.
+3. Update `start.sh` to configure the app from Cloudron environment variables and launch the primary process.
+4. Replace the placeholder health checks and smoke test with real coverage.
+5. Complete `CloudronManifest.json` (tagline, description, versioning, resource limits, ingress, TCP ports, etc.).
+6. Document manual configuration steps, migrations, and known gaps below.
+
+## Notes
+
+- Populate the `app/` directory with runtime overlays or artifacts generated during the build stage.
+- Use the shared packaging container (`docker/packager`) for `cloudron build/install` to keep the host clean.
+- Record decisions and operational requirements under `docs/apps/{{ app_slug }}/` as work progresses.