feat: add AnggotaKeluarga, RiwayatBantuan, PermohonanTransfer models and migrations

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/Models/RiwayatBantuan.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class RiwayatBantuan extends Model
+{
+    protected $table    = 'riwayat_bantuan';
+    protected $fillable = [
+        'id_rumah', 'ibadah_id', 'dicatat_oleh',
+        'jenis_bantuan', 'keterangan', 'tanggal_bantuan',
+    ];
+    protected $casts = ['tanggal_bantuan' => 'date'];
+
+    public function rumahMiskin() { return $this->belongsTo(RumahMiskin::class, 'id_rumah', 'id_rumah'); }
+    public function ibadah()      { return $this->belongsTo(RumahIbadah::class, 'ibadah_id'); }
+    public function pencatat()    { return $this->belongsTo(User::class, 'dicatat_oleh'); }
+}