New /settings/api/mqtt-clients routes (list/create/revoke/delete) manage
per-consumer dynamic-security identities on the shared broker (LXC 104) —
name + topic scope + publish/subscribe flags in, generated username/password
out (shown once, never stored). Replaces manually running mosquitto_ctrl
over SSH by hand for every new device or app that needs broker access.
Implementation SSHs into the broker LXC and runs mosquitto_ctrl inside a
throwaway container on its Docker network (src/lib/ssh.js + mqtt-dynsec.js)
rather than reimplementing the dynamic-security plugin's JSON wire protocol
from scratch — reuses the exact commands verified by hand while wiring up
the water-softener and mqtt-inspector clients this session. Needs the
shared deploy SSH key mounted (Dockerfile/compose changes) and
MQTT_ADMIN_USER/PASS threaded in via stack-init.
mqtt_clients table is bookkeeping only (name/scope/active) — the broker's
own dynamic-security.json remains the source of truth for auth.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Fastify API for storing third-party integration credentials (Newbook, Resos,
Nextcloud, Azure, SambaPOS) with AES-256-GCM encryption for sensitive fields.
Includes Newbook room sync endpoint and global_config store for shared app data.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
