Bitcoin containers were exiting in ms after start because the orchestrator
install path skipped the credential-materialisation step the legacy path
did. resolve_secret_env then failed to read
/var/lib/archipelago/secrets/bitcoin-rpc-password, the container started
with no password, and bitcoind crashed before logs were useful.
Two changes:
1. install.rs — call bitcoin_rpc_credentials() for bitcoin/bitcoin-core/
bitcoin-knots before any install branch runs. The function generates +
persists on first call (OnceCell-cached), so this is idempotent.
2. manifest.rs::resolve_secret_env — return ManifestError::Invalid when a
resolved secret trims to empty, instead of silently producing
`KEY=` env vars that crash auth.
Adds a unit test for the empty-secret rejection.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>