Fixes issue where token expiration time from config file was not saved
to database during initial setup, causing Docker deployments to ignore
the tokenExpirationTime setting.
Changes:
- Add TokenExpirationTime to quick setup initialization (cmd/root.go)
- Add TokenExpirationTime to config init command (cmd/config_init.go)
- Add token-expiration-time support to config set command (cmd/config_set.go)
- Display token expiration time in config cat output (cmd/config.go)
All initialization paths now properly read and save token expiration
settings from config files, environment variables, and CLI flags.
Fixes#3718, #3150, #2554, #2553
Related to #2753