Self-heal stalled operations

Pass an expiresAt deadline when starting work that could hang:

$operations->start(new StartOperation(
    kind: 'provision',
    steps: ['order', 'boot', 'configure'],
    expiresAt: now()->addMinutes(20),
));

Schedule the sweep so a worker that crashed mid-run doesn't leave a stuck running record:

use Illuminate\Support\Facades\Schedule;

Schedule::command('operations:sweep-stalled')->everyMinute();

The sweep fails every running operation whose expires_at has passed, with the error stalled: deadline exceeded. Operations without a deadline are never swept. You can also call it directly: app(Operations::class)->sweepStalled().