- Remove --mode, --transition-type, and --decay-index CLI flags
(parameters now come from ENSDF data or custom JSON input)
- Clarify energy units in all CLI help text (MeV throughout, keV for detector params)
- Enhance logging verbosity:
- -v (INFO): shows source, component initialization, workflow steps
- -vv (DEBUG): shows detailed internals of all spectrum components
(parameters, evaluation counts, input/output ranges)
- Improve CSV headers with element notation (e.g. Tc99 -> Ru99)
- Add CONVENTIONS.md documenting energy unit and logging conventions
- Update TODO.md with completion status