feat: Introduce client management and integration updates

- Added client_id field to StoreTenantRequest and UpdateTenantRequest for tenant management.
- Updated TenantResource to include client_id in the response.
- Created migration to establish clients table and link tenants to clients.
- Migrated existing tenant integrations to client_integrations table.
- Grouped specific tenants under a shared client (OnTicket) in a new migration.
- Updated seeders to reflect new client structure and relationships.
- Adjusted integration configurations to require client instead of tenant.
- Added tests for client integration functionality and ensured existing tests reflect the new client structure.

app/Domains/Client/Controllers/ClientController.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace App\Domains\Client\Controllers;
+
+use App\Domains\Client\Models\Client;
+use App\Domains\Client\Requests\StoreClientRequest;
+use App\Domains\Client\Requests\UpdateClientRequest;
+use App\Domains\Client\Resources\ClientResource;
+use App\Http\Controllers\Controller;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Response;
+
+class ClientController extends Controller
+{
+    public function index(): JsonResponse
+    {
+        return ClientResource::collection(
+            Client::query()->with('tenants')->latest()->paginateFromRequest()
+        )->response();
+    }
+
+    public function store(StoreClientRequest $request): JsonResponse
+    {
+        return ClientResource::make(
+            Client::query()->create($request->validated())->load('tenants')
+        )->response()->setStatusCode(201);
+    }
+
+    public function show(Client $client): ClientResource
+    {
+        return ClientResource::make($client->load('tenants'));
+    }
+
+    public function update(UpdateClientRequest $request, Client $client): ClientResource
+    {
+        $client->update($request->validated());
+
+        return ClientResource::make($client->fresh()->load('tenants'));
+    }
+
+    public function destroy(Client $client): Response
+    {
+        $client->delete();
+
+        return response()->noContent();
+    }
+}