feat: Add customer password update endpoint for admin

backend/app/routes/admin.py

@@ -761,6 +761,53 @@ def update_customer_status(customer_id):
         }), 500
 
 
+@admin_bp.route('/customers/<int:customer_id>/password', methods=['PUT'])
+def update_customer_password(customer_id):
+    """Müşteri şifresini güncelle (Admin tarafından)"""
+    try:
+        data = request.json
+        new_password = data.get('new_password')
+
+        if not new_password:
+            return jsonify({
+                "status": "error",
+                "message": "Yeni şifre gerekli"
+            }), 400
+
+        # Şifre validasyonu
+        if len(new_password) < 8:
+            return jsonify({
+                "status": "error",
+                "message": "Şifre en az 8 karakter olmalıdır"
+            }), 400
+
+        customer = Customer.query.get(customer_id)
+
+        if not customer:
+            return jsonify({
+                "status": "error",
+                "message": "Müşteri bulunamadı"
+            }), 404
+
+        user = User.query.get(customer.user_id)
+
+        # Şifreyi güncelle
+        user.set_password(new_password)
+        db.session.commit()
+
+        return jsonify({
+            "status": "success",
+            "message": "Şifre başarıyla güncellendi"
+        })
+
+    except Exception as e:
+        db.session.rollback()
+        return jsonify({
+            "status": "error",
+            "message": f"Şifre güncellenirken hata: {str(e)}"
+        }), 500
+
+
 @admin_bp.route('/stats', methods=['GET'])
 def get_admin_stats():
     """Admin dashboard istatistikleri"""