feat(webstatement): tambahkan fitur penggabungan dan proteksi file PDF

- Menambahkan command baru `webstatement:combine-pdf` melalui `CombinePdf` untuk menjalankan proses penggabungan file PDF.
  - Proses ini mencakup penggabungan file PDF dari folder r14 dan r23 berdasarkan periode tertentu.
  - File PDF yang dihasilkan juga dilindungi dengan password berbasis nomor rekening.
- Membuat controller `CombinePdfController` dengan fungsi utama `combinePdfs` untuk mengontrol alur penggabungan file PDF:
  - Mendapatkan daftar akun yang relevan.
  - Mengecek file dari folder r14 dan r23 untuk setiap akun.
  - Melakukan logging saat file tidak ditemukan atau jika terdapat error dalam proses.
  - Mendaftarkan job `CombinePdfJob` untuk memproses file secara async.
- Menambahkan job baru `CombinePdfJob`:
  - Menggunakan library `PDFMerger` untuk menggabungkan file.
  - Terapkan proteksi password menggunakan library `PDFPasswordProtect`.
  - Memastikan direktori output dibuat jika belum ada.
  - Melakukan logging saat proses berhasil maupun saat terjadi error.
- Memperbarui `WebstatementServiceProvider`:
  - Mendaftarkan command baru ke dalam provider.
  - Menambahkan penjadwalan otomatis untuk menjalankan perintah `webstatement:combine-pdf` setiap hari pada pukul 09:30.
  - Logging hasil eksekusi ke file log `logs/combine-pdf.log`.

Signed-off-by: Daeng Deni Mardaeni <ddeni05@gmail.com>

app/Http/Controllers/CombinePdfController.php

@@ -0,0 +1,93 @@
+<?php
+
+namespace Modules\Webstatement\Http\Controllers;
+
+use App\Http\Controllers\Controller;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\File;
+use Illuminate\Support\Facades\Log;
+use Modules\Webstatement\Jobs\CombinePdfJob;
+use Modules\Webstatement\Models\Account;
+
+class CombinePdfController extends Controller
+{
+    /**
+     * Display a listing of the resource.
+     */
+    public function index()
+    {
+        return view('webstatement::index');
+    }
+
+    /**
+     * Combine PDF files from r14 and r23 folders for all accounts
+     *
+     * @param Request $request
+     * @return \Illuminate\Http\JsonResponse
+     */
+    public function combinePdfs(Request $request)
+    {
+        // Get period from request or use current period
+        $period = $request->input('period', date('Ym'));
+
+        // Get all accounts
+        $accounts = Account::all();
+        $processedCount = 0;
+        $skippedCount = 0;
+        $errorCount = 0;
+
+        foreach ($accounts as $account) {
+            $branchCode = $account->branch_code;
+            $accountNumber = $account->account_number;
+
+            // Define file paths
+            $r14Path = storage_path("app/r14/{$period}/{$branchCode}/{$accountNumber}_{$period}.pdf");
+            $r23Path = storage_path("app/r23/{$period}/{$branchCode}/{$accountNumber}_{$period}.pdf");
+            $outputDir = storage_path("app/combine/{$period}/{$branchCode}");
+            $outputFilename = "{$accountNumber}_{$period}.pdf";
+
+            // Check if files exist
+            $r14Exists = File::exists($r14Path);
+            $r23Exists = File::exists($r23Path);
+
+            // Skip if neither file exists
+            if (!$r14Exists && !$r23Exists) {
+                Log::warning("No PDF files found for account {$accountNumber}");
+                $skippedCount++;
+                continue;
+            }
+
+            // If both files exist, combine them
+            if ($r14Exists && $r23Exists) {
+                Log::info("Combining PDFs for account {$accountNumber}");
+                $pdfFiles = [$r14Path, $r23Path];
+            }
+            // If only one file exists, just apply password protection
+            else {
+                Log::info("Applying password protection to single PDF for account {$accountNumber}");
+                $pdfFile = $r14Exists ? $r14Path : $r23Path;
+                $pdfFiles = [$pdfFile];
+            }
+
+            try {
+                // Use the account number as password
+                $password = $accountNumber;
+
+                // Dispatch job to combine PDFs or apply password protection
+                CombinePdfJob::dispatch($pdfFiles, $outputDir, $outputFilename, $password);
+                $processedCount++;
+            } catch (\Exception $e) {
+                Log::error("Error processing PDF for account {$accountNumber}: {$e->getMessage()}");
+                $errorCount++;
+            }
+        }
+
+        return response()->json([
+            'message' => 'PDF combination process has been queued',
+            'processed' => $processedCount,
+            'skipped' => $skippedCount,
+            'errors' => $errorCount,
+            'period' => $period
+        ]);
+    }
+}