gemmaLogLevel top-level property
Active log level. Top-level (Dart-canonical for process-global logger state) so gemmaLog reads it without importing the public facade.
NOTE: top-level mutables are per-isolate in Dart — a spawned isolate gets its own copy initialized to GemmaLogLevel.info. Isolate entry points must set this from data passed at spawn (see the embedding worker).
Implementation
GemmaLogLevel gemmaLogLevel = GemmaLogLevel.info;