buid new app

app/Models/Category.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Category extends Model
+{
+    protected $fillable = ['user_id', 'parent_id', 'name', 'color', 'icon'];
+
+    public function parent()
+    {
+        return $this->belongsTo(Category::class, 'parent_id');
+    }
+
+    public function children()
+    {
+        return $this->hasMany(Category::class, 'parent_id');
+    }
+
+    public function expenses()
+    {
+        return $this->hasMany(Expense::class);
+    }
+}

app/Models/CategoryRule.php

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+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class CategoryRule extends Model
+{
+    protected $fillable = ['user_id', 'category_id', 'keyword'];
+
+    public function category()
+    {
+        return $this->belongsTo(Category::class);
+    }
+}

app/Models/Expense.php

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+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Expense extends Model
+{
+    protected $fillable = [
+        'user_id',
+        'category_id',
+        'subcategory_id',
+        'type',
+        'amount',
+        'note',
+        'date',
+        'invoice_number',
+        'seller_name',
+        'item_name',
+        'external_id',
+    ];
+
+    protected $casts = [
+        'date'   => 'date:Y-m-d',
+        'amount' => 'decimal:2',
+    ];
+
+    public function user()
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function category()
+    {
+        return $this->belongsTo(Category::class);
+    }
+
+    public function subcategory()
+    {
+        return $this->belongsTo(Category::class, 'subcategory_id');
+    }
+}

app/Models/User.php

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+<?php
+
+namespace App\Models;
+
+// use Illuminate\Contracts\Auth\MustVerifyEmail;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Foundation\Auth\User as Authenticatable;
+use Illuminate\Notifications\Notifiable;
+
+class User extends Authenticatable
+{
+    /** @use HasFactory<\Database\Factories\UserFactory> */
+    use HasFactory, Notifiable;
+
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var list<string>
+     */
+    protected $fillable = [
+        'name',
+        'email',
+        'password',
+    ];
+
+    /**
+     * The attributes that should be hidden for serialization.
+     *
+     * @var list<string>
+     */
+    protected $hidden = [
+        'password',
+        'remember_token',
+    ];
+
+    /**
+     * Get the attributes that should be cast.
+     *
+     * @return array<string, string>
+     */
+    protected function casts(): array
+    {
+        return [
+            'email_verified_at' => 'datetime',
+            'password' => 'hashed',
+        ];
+    }
+}