feat(email-blast): tambahkan kontroler untuk manajemen email blast

- Menambahkan EmailBlastController untuk mengelola email blast.
- Menyediakan metode untuk menampilkan, membuat, dan menyimpan email blast.
- Mengimplementasikan validasi untuk input email blast.
- Menyimpan riwayat email blast dan mengantre pengiriman menggunakan job.
- Menyediakan metode untuk menampilkan detail dan datatables untuk riwayat email blast.

app/Http/Controllers/EmailBlastController.php

@@ -0,0 +1,81 @@
+<?php
+
+namespace Modules\Webstatement\Http\Controllers;
+
+use App\Http\Controllers\Controller;
+use Illuminate\Http\Request;
+use Modules\Webstatement\Models\Customer;
+use Modules\Webstatement\Models\EmailBlastHistory;
+use Modules\Webstatement\Jobs\SendEmailBlast;
+
+class EmailBlastController extends Controller
+{
+    public function index()
+    {
+        return view('webstatement::emailblast.index');
+    }
+
+    public function create()
+    {
+        return view('webstatement::emailblast.create');
+    }
+
+    public function store(Request $request)
+    {
+        $request->validate([
+            'subject' => 'required|string',
+            'content' => 'required|string',
+            'recipients_type' => 'required|in:all,custom',
+            'recipients' => 'required_if:recipients_type,custom|array',
+            'recipients.*' => 'email',
+        ]);
+
+        if ($request->recipients_type === 'all') {
+            $recipients = Customer::limit(3)->pluck('email')->toArray();
+        } else {
+            $recipients = $request->recipients;
+        }
+
+        $emailBlastHistory = EmailBlastHistory::create([
+            'subject' => $request->subject,
+            'content' => $request->content,
+            'recipients_count' => count($recipients),
+            'status' => 'pending',
+        ]);
+
+        SendEmailBlast::dispatch($emailBlastHistory, $recipients);
+
+        return redirect()->route('emailblast.index')->with('success', 'Email blast queued successfully');
+    }
+
+    public function view($id)
+    {
+        $emailBlast = EmailBlastHistory::findOrFail($id);
+        return view('webstatement::emailblast.view', compact('emailBlast'));
+    }
+
+    public function datatables(Request $request)
+    {
+        $query = EmailBlastHistory::query();
+
+        if ($request->has('search')) {
+            $searchTerm = $request->search;
+            $query->where('subject', 'like', "%{$searchTerm}%");
+        }
+
+        $total = $query->count();
+
+        $result = $query->orderBy('created_at', 'desc')
+            ->skip($request->input('start', 0))
+            ->take($request->input('length', 10))
+            ->get();
+
+        return response()->json([
+            'draw' => $request->input('draw', 1),
+            'recordsTotal' => $total,
+            'recordsFiltered' => $total,
+            'data' => $result
+        ]);
+
+    }
+}