Posted Claude #23 for u10 retry to issue #76 (comment id 23326). Tightened `test_e2e_reject_chain_writes_final_html_with_ai_repaired_slot` in `tests/test_imp47b_end_to_end.py` to seed deterministic non-overridden slot values (col labels + one row) and assert they survive AI merge through `render_slide` into the on-disk `final.html` — locks the `dict.update`-not-replace semantic at the production render seam. All 3 u10 tests pass (`3 passed in 0.15s`); upstream u4/u5/u6/u7/u8/u9 helper tests remain green (`39 passed`). Draft saved to `.orchestrator/drafts/76_stage_code-edit_claude_r4.md`. Stopping per `1 turn = 1 step`; no commit/push.