first commit

app/Models/ActivityLog.php

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+<?php
+namespace App\Models;
+use Illuminate\Database\Eloquent\Model;
+
+class ActivityLog extends Model
+{
+    public $timestamps = false;
+    protected $fillable = ['user_id', 'action', 'model_type', 'model_id', 'old_data', 'new_data', 'created_at'];
+    protected $casts = ['old_data' => 'array', 'new_data' => 'array', 'created_at' => 'datetime'];
+}

app/Models/Building.php

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+<?php
+namespace App\Models;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Building extends Model
+{
+    use SoftDeletes;
+    protected $fillable = ['owner_id', 'building_name', 'address', 'city', 'status'];
+    
+    public function owner() { return $this->belongsTo(Owner::class); }
+    public function units() { return $this->hasMany(Unit::class); }
+    
+    protected static function boot()
+    {
+        parent::boot();
+        static::creating(fn($model) => $model->created_by = auth()->id());
+        static::updating(fn($model) => $model->updated_by = auth()->id());
+    }
+}

app/Models/Contract.php

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+<?php
+namespace App\Models;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Contract extends Model
+{
+    use SoftDeletes;
+    protected $fillable = ['unit_id', 'person_id', 'contract_type', 'contract_number', 'ejari_no', 'start_date', 'end_date', 'duration_months', 'total_amount', 'status', 'notes'];
+    protected $casts = ['start_date' => 'date', 'end_date' => 'date'];
+    
+    public function unit() { return $this->belongsTo(Unit::class); }
+    public function subunits() { return $this->belongsToMany(Subunit::class, 'contract_subunits'); }
+    public function payments() { return $this->hasMany(Payment::class); }
+    
+    public function person()
+    {
+        return $this->contract_type === 'owner' 
+            ? $this->belongsTo(Owner::class, 'person_id')
+            : $this->belongsTo(Tenant::class, 'person_id');
+    }
+    
+    protected static function boot()
+    {
+        parent::boot();
+        static::creating(fn($model) => $model->created_by = auth()->id());
+        static::updating(fn($model) => $model->updated_by = auth()->id());
+    }
+}

app/Models/Owner.php

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+<?php
+namespace App\Models;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Owner extends Model
+{
+    use SoftDeletes;
+    protected $fillable = ['name', 'email', 'phone', 'emirates_id', 'passport_no', 'nationality', 'address'];
+    
+    protected static function boot()
+    {
+        parent::boot();
+        static::creating(fn($model) => $model->created_by = auth()->id());
+        static::updating(fn($model) => $model->updated_by = auth()->id());
+    }
+}

app/Models/Payment.php

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+<?php
+namespace App\Models;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Payment extends Model
+{
+    use SoftDeletes;
+    protected $fillable = ['contract_id', 'payment_type', 'payment_number', 'bank_name', 'amount', 'due_date', 'status', 'notes'];
+    protected $casts = ['due_date' => 'date'];
+    
+    public function contract() { return $this->belongsTo(Contract::class); }
+    
+    protected static function boot()
+    {
+        parent::boot();
+        static::creating(fn($model) => $model->created_by = auth()->id());
+        static::updating(fn($model) => $model->updated_by = auth()->id());
+    }
+}

app/Models/Subunit.php

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+<?php
+namespace App\Models;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Subunit extends Model
+{
+    use SoftDeletes;
+    protected $fillable = ['unit_id', 'subunit_no', 'subunit_type', 'area_sqft', 'status'];
+    
+    public function unit() { return $this->belongsTo(Unit::class); }
+    public function contracts() { return $this->belongsToMany(Contract::class, 'contract_subunits'); }
+    
+    protected static function boot()
+    {
+        parent::boot();
+        static::creating(fn($model) => $model->created_by = auth()->id());
+        static::updating(fn($model) => $model->updated_by = auth()->id());
+    }
+}

app/Models/Tenant.php

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+<?php
+namespace App\Models;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Tenant extends Model
+{
+    use SoftDeletes;
+    protected $fillable = ['name', 'email', 'phone', 'emirates_id', 'passport_no', 'nationality', 'address'];
+    
+    protected static function boot()
+    {
+        parent::boot();
+        static::creating(fn($model) => $model->created_by = auth()->id());
+        static::updating(fn($model) => $model->updated_by = auth()->id());
+    }
+}

app/Models/Unit.php

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+<?php
+namespace App\Models;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Unit extends Model
+{
+    use SoftDeletes;
+    protected $fillable = ['building_id', 'unit_no', 'floor_no', 'area_sqft', 'assets', 'status'];
+    protected $casts = ['assets' => 'array'];
+    
+    public function building() { return $this->belongsTo(Building::class); }
+    public function subunits() { return $this->hasMany(Subunit::class); }
+    public function contracts() { return $this->hasMany(Contract::class); }
+    
+    protected static function boot()
+    {
+        parent::boot();
+        static::creating(fn($model) => $model->created_by = auth()->id());
+        static::updating(fn($model) => $model->updated_by = auth()->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',
+        ];
+    }
+}