Add models and migrations for Anggota, Buku, Kategori, and Peminjaman

app/Models/Anggota.php

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+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Anggota extends Model
+{
+    use HasFactory, SoftDeletes;
+
+    protected $fillable = [
+        'nama',
+        'email',
+        'no_telepon',
+        'alamat',
+        'tanggal_bergabung',
+        'status',
+    ];
+
+    protected $casts = [
+        'tanggal_bergabung' => 'date',
+    ];
+
+    public function peminjamans()
+    {
+        return $this->hasMany(Peminjaman::class);
+    }
+}

app/Models/Buku.php

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+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Buku extends Model
+{
+    use HasFactory, SoftDeletes;
+
+    protected $fillable = [
+        'kategori_id',
+        'judul',
+        'pengarang',
+        'penerbit',
+        'tahun_terbit',
+        'isbn',
+        'stok',
+        'stok_tersedia',
+        'sinopsis',
+        'cover',
+    ];
+
+    public function kategori()
+    {
+        return $this->belongsTo(Kategori::class);
+    }
+
+    public function peminjamans()
+    {
+        return $this->hasMany(Peminjaman::class);
+    }
+}

app/Models/Kategori.php

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+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Kategori extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'nama_kategori',
+        'deskripsi',
+    ];
+
+    public function bukus()
+    {
+        return $this->hasMany(Buku::class);
+    }
+}

app/Models/Peminjaman.php

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+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Peminjaman extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'anggota_id',
+        'buku_id',
+        'tanggal_pinjam',
+        'tanggal_kembali_rencana',
+        'tanggal_kembali_aktual',
+        'status',
+        'denda',
+        'catatan',
+    ];
+
+    protected $casts = [
+        'tanggal_pinjam'          => 'date',
+        'tanggal_kembali_rencana' => 'date',
+        'tanggal_kembali_aktual'  => 'date',
+    ];
+
+    public function anggota()
+    {
+        return $this->belongsTo(Anggota::class);
+    }
+
+    public function buku()
+    {
+        return $this->belongsTo(Buku::class);
+    }
+}