docs(rewrite): status update

docs/rewrite/INTEGRATION_TODO.md

@@ -21,3 +21,7 @@ Collected from agent reports; resolve during integration phases.
 - [x] terminal (after T4/T5/K1): Codex round 3 on notes/ghostty-terminal-pagelist-requests.md items 1,2,3,4,5,7 + append_grapheme dirty + clone_partial_row_between; then remove Screen/Terminal workarounds. Items 6 and the two T3 test items are resolved by the parity pass.
 - [ ] tmux viewer wiring into termio stream handler (see notes/ghostty-terminal-search-tmux.md); renderer sets search_viewport_dirty.
 - [ ] apprt-gtk: stubs toggle_visibility/float_window/secure_input/close_all_windows; inspector no-op; cgroup wait loop duplicated with termio; GLArea framebuffer id must be queried by renderer; layer-shell lib load order.
+- [ ] RendererState defined in termio::state; renderer R2 ports State.zig → unify (canonical in renderer, termio depends on renderer).
+- [ ] termio: hook kitty graphics exec/replies (terminal now has it) and image_storage_limit; tmux viewer.
+- [ ] termio: Flatpak stop path needs ghostty-os FlatpakHostCommand change; apprt-gtk create_scope; core restore_rlimit.
+- [ ] renderer: generic::update_kitty → call image::State::kitty_update now that Screen has ImageStorage; apprt-gtk must set GL viewport before draw.

docs/rewrite/STATUS.md

@@ -26,9 +26,10 @@ Legend: ⬜ todo · 🟨 in progress · ✅ done (gate passed, committed) · ⚠
 | K1 | terminal: kitty graphics image/storage/unicode/render/exec | sonnet | ✅ | wired (TI) | |
 | T4 | terminal: render state, highlight, formatter | sonnet | ✅ | |
 | T5 | terminal: search + tmux viewer | sonnet | ✅ | tmux viewer not wired to termio yet | |
-| IO2 | termio: Exec, Termio, Thread, stream_handler | sonnet | 🟨 | |
+| IO2 | termio: Exec, Termio, Thread, stream_handler | sonnet | ✅ | |
-| R2 | renderer: generic, cell, row, link, State, Overlay, image, Thread | sonnet | 🟨 | |
+| R2 | renderer: generic, cell, row, link, State, Overlay, image, Thread | sonnet | ✅ | kitty update_kitty stub | |
 | TI | terminal integration: kitty wiring + PageList requests, remove workarounds | codex astra | ✅ | 1252 tests |
+| CORE | core App/Surface, trait move, state unification, root main, run app | sonnet | 🟨 | |
 
 ## Log
 - 2026-10-11: Phase 0 complete; Phase 1 launched.
@@ -42,3 +43,4 @@ Legend: ⬜ todo · 🟨 in progress · ✅ done (gate passed, committed) · ⚠
 - 2026-10-11: PageList parity merged (913 tests, 0 ignored). T4 committed; R2 launched.
 - 2026-10-11: T5, K1 committed (1243 terminal tests). Codex TI launched.
 - 2026-10-11: GTK runtime committed; terminal integration pass done (1252 tests, 0 ignored).
+- 2026-10-11: IO2, R2 committed. CORE integration launched (Phase 6).