Secrets (JWT keys, LDAP sync password, OIDC client id/secret, cross-login
keys) are now configured directly in config.json under the auth section
where they are used. Each secret can still be supplied via its existing
environment variable, which takes precedence over the config value.
The godotenv dependency, the .env file, configs/env-template.txt and the
loadEnvironment() bootstrap step are removed. -init now writes the demo
JWT keys into config.json instead of a .env file.
Closes#283
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Entire-Checkpoint: 3a7cb814c53f
