- New package type "terraform-local" for hosting terraform providers
without an upstream registry
- Upload via PUT /api/v2/remotes/{name}/files/{path}, returns 409 on
duplicate (overwrites not allowed)
- Download via GET on same path, or via v1 proxy route
- Provider registers as fully immutable, no upstream rewriting
- v1 proxy handler serves local files directly for local repo types
- Database CRUD for local_files table
