Add readied tenants

Add config for readied tenants
Add `create` and `clear` command
Add Readied scope and static functions
Add tests

assets/config.php

@@ -35,6 +35,37 @@ return [
         // Stancl\Tenancy\Bootstrappers\RedisTenancyBootstrapper::class, // Note: phpredis is needed
     ],
 
+
+    /**
+     * Readied tenancy config.
+     * This is useful if you're looking for a way to always have a tenant ready to be used.
+     */
+    'readied' => [
+        /**
+         * If disabled, readied tenants will be excluded from all tenant queries. Unless if
+         * told otherwise with ::withReadied() or ::onlyReadied().
+         * Note: when disabled, this will also ignore tenants when runnings any tenants commands (migration, seed, etc.)
+         */
+        'include_in_scope' => true,
+        /**
+         * Defines how many tenants you want to be in a readied state.
+         * This value should be changed depending on how often a new tenant is created
+         * and how often you run the `tenancy:readied` command via the scheduler.
+         */
+        'count' => env('TENANCY_READIED_COUNT', 5),
+
+        /**
+         * If needed, you can define a time limite after when an unused readied tenant
+         * will automatically be deleted.
+         * For this to work automatically, make sure to call the `tenancy:readied-clear` command in the scheduler.
+         *
+         * If both values are set to null, not time limit will be set and all readied tenants will be deleted.
+         */
+        'older_than_days' => env('TENANCY_READIED_OLDER_THAN_DAYS', null),
+
+        'older_than_hours' => env('TENANCY_READIED_OLDER_THAN_HOURS', null),
+    ],
+
     /**
      * Database tenancy config. Used by DatabaseTenancyBootstrapper.
      */