New independent `admin` service (admin.main:app) on the same image, reusing
app.db/app.models read-only. Never runs migrations or the scheduler; issues
SELECTs only.
- Password-gated (ADMIN_CONSOLE_PASSWORD) with a 12h signed cookie; closed by
default when the password is empty.
- Bound to 127.0.0.1:8091 (SSH-tunnel access); off the intranet/NPM network.
- Pages: overview stats, user list + search, per-user history/payment detail,
DB usage (information_schema size + row estimates).
- Compose: base `admin` service (+prod DB-host override, test mount); Dockerfile
bakes admin/ into runtime + test stages.
- Tests: tests/test_admin_console.py (auth, queries, page wiring) — 12 passing.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>