WiFi OpenTelemetry diagnostics stack — offline installer bundle
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Self-contained. No internet access needed on the target machine.
Target: Ubuntu 22.04, x86_64 (linux-amd64). Requires sudo.

Contents
  install.sh              top-level offline installer
  exporter/               wifi-otel-exporter binary, config, systemd unit, D-Bus policy
  prometheus/             prometheus tarball, prometheus.yml, systemd unit
  grafana/                grafana tarball, grafana.ini, provisioning, dashboard, unit

Usage
  unzip wifi-otel-stack-offline.zip
  cd wifi-otel-stack-offline
  ./install.sh                      # install + enable all three
  ./install.sh exporter             # only the exporter
  ./install.sh prometheus grafana   # a subset
  ./install.sh --no-enable          # install without starting services

Idempotent — re-running is safe. Existing /etc config files are preserved.

After install
  Exporter   http://localhost:9100/metrics
  Prometheus http://localhost:9090
  Grafana    http://localhost:3000   (anonymous Viewer; admin/admin to edit)
