Remove gA-extraction notes, nuclear-structure notes, paper-summary
refs, detector-response correction note and the finished test
migration checklist. Rewrite the vault index for the single-package
theory calculator; repoint dangling wiki-links in surviving notes to
inline citations; refresh docs_check.py (drop bs_exp CLI check,
register removed files).
Literature and nuclear-structure research resumes in dedicated
projects; the removed notes are recoverable from history.
- Organize into tree structure: corrections/, nuclear-structure/, gA-extraction/, refs/
- Move all correction notes to corrections/ (01-09)
- Move nuclear structure to nuclear-structure/ with index
- Add gA-extraction/ with SSM algorithm, sNME/ESSM formalism, Tc99 case study, and implementation TODO
- Reorganize refs by topic (electromagnetic/, forbidden-decay/)
- Update all wikilinks to new paths
- Remove radiative_spec.md (code algorithm, not reference)
- Lint: all wikilinks verified valid
- Comprehensive gA extraction research based on Paulsen et al. (2024) and Song et al. (2025)