Upgrade nomad/jobs/forgejo.hcl to read SECRET_KEY + INTERNAL_TOKEN from
Vault via a template stanza using the service-forgejo role (S2.3).
Non-secret config (DB, ports, ROOT_URL, registration lockdown) stays
inline. An empty-Vault fallback (`with ... else ...`) renders visible
placeholder env vars so a fresh LXC still brings forgejo up — the
operator sees the warning instead of forgejo silently regenerating
SECRET_KEY on every restart.
Add tools/vault-seed-forgejo.sh — idempotent seeder that ensures the
kv/ mount is KV v2 and populates kv/data/disinto/shared/forgejo with
random secret_key (32B hex) + internal_token (64B hex) on a clean
install. Existing non-empty values are left untouched; partial paths
are filled in atomically. Parser shape is positional-arity case
dispatch to stay structurally distinct from the two sibling vault-*.sh
tools and avoid the 5-line sliding-window dup detector.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>