docs: update registry intake roadmap with intake process reform lanes
Merged
TO
2mo ago+7+7+0123456789-1-1-0123456789
Updates \docs/registry-intake-roadmap.md\ to reflect the four newly unlocked intake lanes resulting from the August 2026 Intake Process Reform (P1 commit-snapshot mode, P2 non-binary archive intake, P4 maintained forks, and P6 provisional evidence tier per ADR 0001).