docs(rewrite): status update

docs/rewrite/STATUS.md

@@ -71,7 +71,8 @@ Legend: ⬜ todo · 🟨 in progress · ✅ done (gate passed, committed) · ⚠
 | RV5 | final targeted Codex check | codex astra | ✅ | 7/13 resolved, 6 partial + 10 sweep groups, 2 regressions → Z7 |
 | Z7 | type-safe encoded OS strings + all RV5 findings (incl. Mach handler hang, open.rs regression, color OSC alloc) | sonnet | ✅ | 3376 tests, all cross-checks green |
 | RV6 | final Codex verification + sweep + verdict | codex astra | ✅ | 22/23 resolved; 7 small gap groups → Z8 |
-| Z8 | RV6 gaps: crash abort handoff, SHELL/PATH bytes, Windows env, show-config round-trip, lib locale | sonnet | 🟨 | |
+| Z8 | RV6 gaps: crash abort handoff, SHELL/PATH bytes, Windows env, show-config round-trip, lib locale | sonnet | ✅ | 3390 tests |
+| RV7 | final Codex verification of RV6 rows + sweep + verdict | codex astra | 🟨 | |
 
 ## Log
 - 2026-10-11: Phase 0 complete; Phase 1 launched.
@@ -100,3 +101,4 @@ Legend: ⬜ todo · 🟨 in progress · ✅ done (gate passed, committed) · ⚠
 - 2026-10-12: Z5 committed (3342 tests, all cross-checks green). Z6 (macOS/Windows minidumps) launched.
 - 2026-10-12: Z6 committed (3348 tests). RV5 found remaining byte-path leaks + 2 regressions → Z7 (structural fix).
 - 2026-10-12: Z7 committed (EncodedOs newtype; 3376 tests). RV6 final verification running.
+- 2026-10-12: Z8 committed (3390 tests, cross-checks green). RV7 running.