v1.2.0 — align onto telemetry 1.0

Changed

• Require cboxdk/laravel-telemetry ^1.0 (was ^0.3.0). Aligns the dashboard
  with the now-stable telemetry 1.0 line — the old ^0.3.0 constraint excluded
  telemetry 0.4 and 1.0, so a fresh install pinned an older telemetry. No
  dashboard code changes; verified against telemetry 1.0.0 (326 tests green).