#31: HeicodeDeployAgent now refuses to deploy unless CRYPTO_SECRET is explicitly
configured, so the per-agent access_token is sealed with a key that survives a
container restart. common.CryptoSecret is never literally "" (defaults to
uuid/SessionSecret), so the sealAgentToken plaintext fallback was effectively
unreachable; the real hazard is an ephemeral random seal key making tokens
undecryptable after restart. Dev-only override: HEICODE_ALLOW_PLAINTEXT_AGENT_TOKEN_IN_DEV=true.
Verified prod container has CRYPTO_SECRET set (64 chars) -> deploy stays allowed.
#33: StartSecretPurgeTask refuses to start a whole-vault purge when
HEICODE_SECRET_PURGE_NAME_PREFIX is empty unless HEICODE_SECRET_PURGE_VAULT_EXCLUSIVE=true,
so HM never permanently purges another tenant's soft-deleted secrets in a shared
vault. Logs the resolved purge scope at startup.
Both gates extracted into pure, unit-tested helpers (agentTokenSealKeyConfigured,
secretPurgeScopeAllowed). Affects: Manager only (Agent deploy + Secret lifecycle).
No Client/Swarm/billing/audit schema change.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>