Implement EnsureUserHasWorkspace Trait and Integrate into Controllers… (#741)

* Implement EnsureUserHasWorkspace Trait and Integrate into Controllers and Jobs

- Introduced the EnsureUserHasWorkspace trait to ensure users have at least one workspace when they are detached from a workspace.
- Integrated the trait into WorkspaceUserController to enforce workspace checks during user detachment.
- Updated RemoveWorkspaceGuests job to utilize the new trait for ensuring users have a workspace after detachment.
- Modified UserWorkspace model to call the ensureUserHasWorkspace method upon deletion, maintaining workspace integrity.

These changes enhance user management by ensuring that users always have a workspace, improving overall application stability.

* Add test

---------

Co-authored-by: Julien Nahum <julien@nahum.net>

api/app/Http/Controllers/WorkspaceUserController.php

@@ -4,6 +4,7 @@ namespace App\Http\Controllers;
 
 use App\Jobs\Billing\WorkspaceUsersUpdated;
 use App\Models\UserInvite;
+use App\Traits\EnsureUserHasWorkspace;
 use Illuminate\Http\Request;
 use App\Models\Workspace;
 use App\Models\User;
@@ -11,6 +12,8 @@ use App\Service\WorkspaceHelper;
 
 class WorkspaceUserController extends Controller
 {
+    use EnsureUserHasWorkspace;
+
     public function __construct()
     {
         $this->middleware('auth');
@@ -106,7 +109,9 @@ class WorkspaceUserController extends Controller
         $workspace = Workspace::findOrFail($workspaceId);
         $this->authorize('adminAction', $workspace);
 
+        $user = User::findOrFail($userId);
         $workspace->users()->detach($userId);
+        $this->ensureUserHasWorkspace($user);
         WorkspaceUsersUpdated::dispatch($workspace);
 
         return $this->success([
@@ -119,7 +124,9 @@ class WorkspaceUserController extends Controller
         $workspace = Workspace::findOrFail($workspaceId);
         $this->authorize('view', $workspace);
 
-        $workspace->users()->detach($request->user()->id);
+        $user = $request->user();
+        $workspace->users()->detach($user->id);
+        $this->ensureUserHasWorkspace($user);
 
         return $this->success([
             'message' => 'You have left the workspace successfully.'