Load ~/.config/taler-monitoring/env (taler-monitoring-env profiles)
before suite defaults. Drop hardcoded operator homes and host aliases
from scripts; apply/staging/www/secrets/wallet via env.
New phase devtesting (aliases franken/fake-franken) probes
taler-devtesting on rusty.taler-ops.ch: geniban + fake-incoming CHF
to the exchange IBAN. Nexus bounce without reserve pub is OK for the
plumbing probe. Stage host-agent can include the phase.
