Now I have a Users table, a Stores table, and a Store Members table. 
In stores I add foreign column user_id this is for owner and store members, it is related to store members, this table has only two columns user_id and store_id now I want to handle the relationships between them in laravel model

(1)
// Relationship to stores owned by the user
public function ownedStores()
{
    return $this->hasMany(Store::class, 'user_id');
}

// Relationship to stores where the user is a member
public function storeMemberships()
{
    return $this->hasMany(StoreMember::class);
}

// Get all stores the user is associated with (both owned and as a member)
public function stores()
{
    return $this->belongsToMany(Store::class, 'store_members', 'user_id', 'store_id');
}

(2)
// Relationship to the store owner
public function owner()
{
    return $this->belongsTo(User::class, 'user_id');
}

// Relationship to store members
public function members()
{
    return $this->belongsToMany(User::class, 'store_members', 'store_id', 'user_id');
}

(3)
// Relationship to the user
public function user()
{
    return $this->belongsTo(User::class, 'user_id');
}

// Relationship to the store
public function store()
{
    return $this->belongsTo(Store::class, 'store_id');
}