- README.md: Add features for plot modes, traceability, debug workflow
- README.md: Update BetaSpectrumAnalyzer docs with show_components param
- README.md: Update Quick Start with both plot modes
- README.md: Add output/ to project structure
- TODO.md: Mark B8.4 plot output as completed
- TODO.md: Update Current Status with B8.4
- TODO.md: cross out completed A2 (detector response) and A4 (fitter/CW extraction) items with strikethrough and implementation notes
- README.md: replace redundant Components and Additional Modules tables with Implementation Status section referencing TODO.md
- Eliminates duplicate status tracking between README and TODO
- Remove empty beta_spectrum/components/recoil.py (0-line stub)
- Remove recoil.py from README.md project tree and components table
- Update TODO.md: replace specific recoil section with generic 'Additional
Corrections' deferred item, update Current Status to 0.3.0 with actual
implementation list, mark A4 as complete, set A3 as next step