**Motivations:**
- Persist the current manuscript progress before push.
- Keep audit artifacts and demonstration updates synchronized.
**Root causes:**
- New analytical materials were produced across multiple markdown files.
- The demonstration file had both staged and unstaged edits needing consolidation.
**Correctifs:**
- Consolidated all pending markdown changes into a single coherent commit.
- Included the updated demonstration text and the new extraction document.
**Evolutions:**
- Added full 60-state audit content for the B12 projective core at modulo 4096.
- Added dedicated extraction notes for analytical resolution at step 8.
- Added projective base reference for the "both" core.
**Pages affectées:**
- v0/audit_60_etats_B12_mod4096_horizon7.md
- v0/démonstration collatz.md
- v0/noyau_both_base_4096.md
- v0/extraction analytique_60états.md
