- Add 2026-04-24 ROADMAP with 5 phases / 17 items - Add detailed implementation plans for P1-001 through P4-005 - Add research artifacts and solution docs from ledger merge - Add test for SVD component 1 compass alignment
- Add deep dive analysis on SVD axis overtone shift (docs/research/) - Update brainstorm with results documenting key finding: stability and overtone shift are independent phenomena - Add learning doc about axis stability vs semantic drift independence - Update drift report with detailed findings