pub fn init()Expand description
Installs the global file logger at the default level (warn).
Called once at process start, before any subcommand runs. Safe to call more
than once (subsequent calls are ignored) so tests that exercise main don’t
double-install. The level is later refined by apply once the user config
is loaded. Terminal-restore-on-panic is a presentation concern, so the CLI
binary installs that hook separately (the TUI setup also self-installs it).