docs(rewrite): status update

docs/rewrite/STATUS.md

@@ -73,7 +73,8 @@ Legend: ⬜ todo · 🟨 in progress · ✅ done (gate passed, committed) · ⚠
 | 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 | ✅ | 3390 tests |
 | RV7 | final Codex verification of RV6 rows + sweep + verdict | codex astra | ✅ | all prior rows resolved; 9 narrow byte/Windows gaps → Z9 |
-| Z9 | RV7 gaps + systematic config-string consumer audit | sonnet | 🟨 | |
+| Z9 | RV7 gaps + systematic config-string consumer audit | sonnet | ✅ | 3405 tests; flaky TMPDIR test race fixed |
+| Z10 | byte-typed C API key/preedit text | sonnet | 🟨 | |
 
 ## Log
 - 2026-10-11: Phase 0 complete; Phase 1 launched.
@@ -103,3 +104,4 @@ Legend: ⬜ todo · 🟨 in progress · ✅ done (gate passed, committed) · ⚠
 - 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.
+- 2026-10-12: Z9 committed (audit table in notes/final-Z9.md). Z10 launched; RV8 after.