Enterprise Services administration dashboard

* Database health checks
* Cache health checks
* Storage write and disk-space checks
* Failed queue job monitoring
* Production environment diagnostics
* Persisted health-check history
* Queue retry controls
* Scheduler execution controls
* Cache and optimisation clearing
* Backup creation and retention
* Backup deletion
* SQLite database backup support
* Backup manifests and module metadata
* Artisan health and backup commands
* Administration navigation
* Enterprise permissions
* Module registration and tests

Modules/Enterprise/Models/HealthRun.php

@@ -0,0 +1,14 @@
+<?php
+namespace Modules\Enterprise\Models;
+
+use App\Models\User;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+final class HealthRun extends Model
+{
+    protected $table = 'enterprise_health_runs';
+    protected $fillable = ['user_id', 'status', 'results', 'ran_at'];
+    protected function casts(): array { return ['results' => 'array', 'ran_at' => 'datetime']; }
+    public function user(): BelongsTo { return $this->belongsTo(User::class); }
+}