## Summary
Adds `GET /api/v1/projects/{projectRef}/environments` (personal access
token auth), which lists the base environments a user can access for a
project — their own dev environment plus the project's staging, preview,
and production environments.
## Details
- Built on the PAT route builder, so it inherits org-membership auth and
the per-resource ability check.
- `dev` is scoped to the token owner; archived environments are
excluded.
- Returns the branchable **parent** preview environment — preview branch
children are not included. A consumer targets the parent; branch-level
overrides are handled separately.
- Sorted to match the dashboard's environment switcher (dev → staging →
preview → prod), and never returns API keys.
Example response:
```json
[
{ "id": "...", "slug": "dev", "type": "DEVELOPMENT", "isBranchableEnvironment": false, "branchName": null, "paused": false },
{ "id": "...", "slug": "stg", "type": "STAGING", "isBranchableEnvironment": false, "branchName": null, "paused": false },
{ "id": "...", "slug": "preview", "type": "PREVIEW", "isBranchableEnvironment": true, "branchName": null, "paused": false },
{ "id": "...", "slug": "prod", "type": "PRODUCTION", "isBranchableEnvironment": false, "branchName": null, "paused": false }
]
```
Eric Allam
87448ccaf2