## Summary
- Adds reusable composite GitHub Actions for Twenty app deployment:
- `.github/actions/deploy` — builds and deploys to a remote instance
(`api-url`, `api-key` inputs)
- `.github/actions/install` — installs/upgrades on a specific workspace
(`api-url`, `api-key` inputs)
- Adds a `cd.yml` CD workflow that calls both actions in sequence. The
workflow:
- Deploys on push to `main`
- Can be triggered from a PR by adding a `deploy` label
- Configures a named remote via `TWENTY_DEPLOY_URL` env var and
`TWENTY_DEPLOY_API_KEY` secret
- Applied to: `create-twenty-app` template, `postcard` example,
`hello-world` example
- Updates the `spawn-twenty-app-dev-test` action ref from
`@feature/sdk-config-file-source-of-truth` to `@main` in all `ci.yml`
files