Reject names that are not portable identifiers before a deployment starts
and when Docker flags are built. Quote the full KEY=value assignment for
docker run -e flags, and declare generated Dockerfile ARGs as keys only.
Add shared environment variable key validation and normalization for Livewire forms and models, allowing Docker-compatible keys while rejecting invalid entries such as keys containing equals signs. Also quote Railpack build environment and secret arguments safely.
Mirrors Nixpacks behavior: inject COOLIFY_* and SOURCE_COMMIT into
railpack build variables so apps (e.g. SPAs baking public URLs) can
read them via /run/secrets/<KEY>.
Rename is_nixpacks → is_buildpack_control to cover both NIXPACKS_ and
RAILPACK_ prefixed keys. Update the env variable view and appends list
accordingly.
Promote generate_coolify_env_variables to protected for testability.
Andras Bacsai