TY JOUR TI INFORMATIONAL AND FUNCTIONAL PRINCIPLES OF INTEGRATING IT-SKILLS TECHNOLOGY INTO THE MODERN UNIVERSITY DIGITAL EDUCATIONAL ENVIRONMENT KW digital educational environment KW labor market KW Hard-skills KW IT-Skills KW personalization of learning KW modernization KW integration KW informational and functional principles KW modularity JO Scientific and analytical journal «Vestnik Saint-Petersburg university of State fire service of EMERCOM of Russia» AU Dolzhenkov, S.S. PY 2026 IS 2026 PB Saint-Petersburg University of State Fire Service of Emercom of Russia