Remove duplicate status matrix from Section 3.3 and consolidate to Section 11
as single source of truth. Fix all section number references throughout
documentation.
Changes:
- Remove duplicate status matrix table from Section 3.3
- Update all references from "Section 3.3" and "Section 10" to "Section 11"
- Fix phase directive paths to use consistent ../ prefix format
- Fix P1 path typo (missing "directive" in filename)
- Update Doc C status in matrix to reflect completion
- Remove duplicate text in Doc B baseline scenarios
- Remove self-referencing links in Doc B
All status matrix references now point to Section 11, eliminating confusion
about which matrix is authoritative.