feat: add lab tests, patient file management, and prescription improvements

routes/web.php

@@ -40,14 +40,27 @@
     })->name('sync.run');
 
     Route::get('/admin/backup/download', function () {
-        $data = [
-            'exported_at'  => now()->toDateTimeString(),
-            'last_sync_id' => \App\Models\SyncLog::lastSyncId(),
-            'changes'      => \App\Models\SyncLog::all()->toArray(),
-        ];
-        $filename = 'matab-backup-' . now()->format('Y-m-d_H-i-s') . '.json';
-        return response()->streamDownload(function () use ($data) {
-            echo json_encode($data, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT);
-        }, $filename, ['Content-Type' => 'application/json']);
+        $dbPath = database_path('database.sqlite');
+
+        if (! file_exists($dbPath)) {
+            abort(404, 'Database file not found.');
+        }
+
+        $backupDir = storage_path('app/backups');
+
+        if (! is_dir($backupDir)) {
+            mkdir($backupDir, 0755, true);
+        }
+
+        foreach (glob($backupDir . '/matab-backup-*.sqlite') as $oldFile) {
+            unlink($oldFile);
+        }
+
+        $filename = 'matab-backup-' . now()->format('Y-m-d_H-i-s') . '.sqlite';
+        $backupPath = $backupDir . '/' . $filename;
+
+        copy($dbPath, $backupPath);
+
+        return response()->json(['success' => true, 'filename' => $filename]);
     })->name('backup.download');
 });