Loads the importer config and initialises the logger singleton.
Exits the process with code 1 (writing the error to stderr) when
config loading fails — mirrors the original Index.ts behavior so
existing operator tooling sees identical stderr+exit semantics.
Loads the importer config and initialises the logger singleton.
Exits the process with code 1 (writing the error to stderr) when config loading fails — mirrors the original Index.ts behavior so existing operator tooling sees identical stderr+exit semantics.