fix(server): suppress startup messages for immich-admin CLI Introduce a log_message() helper function with QUIET flag to suppress informational startup output when running immich-admin. This prevents both shell messages and Node.js WASI experimental warnings from interfering with CLI help output. Fixes: #25909
feat: Support config via Systemd Credentials
See https://systemd.io/CREDENTIALS/. This is used as a fallback, so will
only be used if the `$*_FILE` var is empty. This could also be used to
implicitly use Docker Secrets by settings
`CREDENTIALS_DIRECTORY=/run/secrets` rather than setting individual
`$_*FILE` environment variables.
