Am I religiously obligated to compensate my friend for the money that was confiscated from me at the airport, knowing that he demanded it from me after I traveled to get goods for him, and the money was confiscated due to airport procedures?

The agent's hand is a hand of trust; he is not liable unless he commits an تجاوز or negligence. This includes: if he fails to register this property due to travel fatigue, this necessitates liability, like someone who loses a deposit due to forgetfulness. The majority of jurists have stipulated that losing a deposit due to forgetfulness necessitates liability. It states in (Al-Mawsu'ah al-Fiqhiyyah): "Jurists differed on making him liable for that, holding two opinions: The first, held by the Hanafis, and the more correct view of the Shafi'is, and Ibn al-Majishun, Ibn Habib, and Mutarraf from the Malikis, is that he is liable for the deposit if he loses it due to forgetfulness, because his forgetfulness is a transgression against the deposit. The second, held by Al-Baji and Al-Abdusi from the Malikis, is that there is no liability upon him for that." Al-Nawawi mentioned in Rawdat al-Talibin that among the reasons for liability for a deposit is losing it, and he mentioned scenarios for it, including: "If he loses it due to forgetfulness, he is liable according to the more correct view."