v2.2.0

Added

• Built-in guide and a setup checklist — a new ? in the header opens a Guide that explains
  every part of PrintGuard — cameras, printers, monitors, how detection and alerts work, and what
  you can automate — each with a shortcut that jumps straight to the right place. Until your first
  monitor is watching, the dashboard shows a Getting started checklist that tracks your progress
  from camera to printer to alerts to monitor, so you always know what to do next. Works the same in
  local (in-browser) mode.
• Light, dark and custom themes — pick System (follows your device), Light or
  Dark from the new header toggle or Settings → Appearance, or design your own. The
  theme editor lets you set every colour — surfaces, text, lines and the accent/ok/warn/bad
  status colours — with a live preview as you go, and your themes are saved and synced to every
  browser that opens the hub. The selection defaults to System, so each device follows its own
  light/dark preference until you choose one, and the correct theme paints on load with no
  flash. Works the same in local (in-browser) mode.
• Customisable dashboard layout — tap Customise (the ▦ in the header) to arrange the
  dashboard around your workflow: drag monitors into any order, pin the ones that matter
  to the front, and hide the ones you don't, with a tray to bring hidden ones back. The
  camera registry can be reordered and hidden the same way. Dragging works with mouse, touch
  and keyboard, your layout is saved and synced to every browser that opens the hub, and it
  works the same in local (in-browser) mode.
• Home Assistant integration over MQTT — point the hub at your MQTT broker (Settings →
  Home Assistant (MQTT)) and every monitor appears in Home Assistant automatically through
  MQTT discovery, each as its own device: a Defect problem sensor, defect-score and state
  sensors, the latest failure snapshot, an Enabled switch, and — when the monitor is
  linked to a printer — live status and progress with Pause / Resume / Cancel buttons.
  Control is two-way, so Home Assistant dashboards and automations can arm a monitor or stop
  a print, and the hub publishes an availability signal so entities show as unavailable if it
  goes offline. Monitor state is published on change rather than on every inference frame — a
  defect or printer-status transition appears at once while the live score updates in steps —
  so monitors never flood Home Assistant's history. The broker is yours and the bridge runs on
  the hub, so no frames leave your hardware. Optional TLS, username/password and custom topic
  prefixes are supported. Anyone
  with access to the broker can control PrintGuard, so treat broker access as you would the
  dashboard.
• Accessibility pass — the dashboard is now fully keyboard-operable and screen-reader
  friendly. Every control, camera and monitor tile is reachable by Tab with a clear focus
  outline; dialogs and the monitor panel trap focus while open, close on Esc or a click
  outside, lock the page behind them and return focus to wherever you left off; the
  Settings tabs follow the standard arrow-key pattern. Switches, tabs and icon buttons
  carry proper labels, defect alerts are announced aloud, and a "skip to monitors" link
  starts the page. Text, status colours and the light theme were tuned to meet WCAG 2.2 AA
  contrast, and all motion respects your system's reduced-motion setting.