Update §5 phases table: P0-A1 ✅ committed (base fork cbd40e0d, parent
a2998c2d).
Update §6 validation table: test-xhci-irq-qemu.sh now greps for actual
reactor log lines (not fictitious strings).
Update §7 durability log: base fork now has two USB commits (one from
P0-A1), not one. The "first USB-focused commit since dd08b76" is
now cbd40e0d.
Add §11 — implementation handoff appendix with per-phase concrete
targets: upstream commit SHAs, files to touch per phase, git-landing
rules, validation scripts to write, and dependency graph (P0-B2 depends
on P0-B1; P0-A2 through P0-A4 are independent of B; P0-B1 is unblocked).
vasilito
05bb9095ce