Overnight runner command supervised automation

Use this to run sprint prompts sequentially in a Codex session overnight with continue-on-error behavior and a written fallback log. It is not magic autonomy: it should be used only after the Build page is clean enough that each sprint can be expressed as a concrete prompt.

SPRINTS=(
  "Sprint 1: Stabilise baseline and make production truthful. Fix live UK/EU/US data ingestion, sync reliability, degraded-state reporting, and admin diagnostics. Commit changes when complete."
  "Sprint 2: Replace Anthropic classification with GPT-5.4-only classification, fail honestly on missing config, and improve classification evidence and review triggering. Commit changes when complete."
  "Sprint 3: Implement API contract v1 with versioned request/response model, overrideHS6Code support, shipping/commercial context, and structured business-level error handling. Commit changes when complete."
  "Sprint 4: Add importCodes/exportCodes structures, associated headings, ancillary data, and richer result payloads in API and admin UI. Commit changes when complete."
  "Sprint 5: Build deterministic control-codes and restricted/prohibited rules engine with additionalClearanceCodes and rule provenance. Commit changes when complete."
  "Sprint 6: Implement GB/NI/EU and lane-aware trade logic with scenario tests. Commit changes when complete."
  "Sprint 7: Build spreadsheet lifecycle, review queue improvements, overrides reuse, exports, and internal ops workflows. Commit changes when complete."
  "Sprint 8: Prepare internal production pilot, operator dashboards, UAT pack, and fix highest-friction issues found. Commit changes when complete."
)

REPO=/path/to/HScoding
LOGDIR="$REPO/.overnight-sprint-logs"
mkdir -p "$LOGDIR"
cd "$REPO" || exit 1

for i in "${!SPRINTS[@]}"; do
  N=$((i+1))
  echo "=== START SPRINT $N ===" | tee -a "$LOGDIR/run.log"
  if codex exec --full-auto "${SPRINTS[$i]}

Rules:
- Work only in this repo.
- If you hit an error, write a concise failure note to $LOGDIR/sprint-${N}-failure.md and still continue to the next sprint.
- If the sprint is partially complete, commit what is complete and explain what remains in $LOGDIR/sprint-${N}-handoff.md.
- If fully complete, commit changes and write a completion note to $LOGDIR/sprint-${N}-done.md.
- Never stop the full overnight run because one sprint failed."     >"$LOGDIR/sprint-${N}.out" 2>"$LOGDIR/sprint-${N}.err"; then
    echo "SPRINT $N: success" | tee -a "$LOGDIR/run.log"
  else
    echo "SPRINT $N: failed, continuing" | tee -a "$LOGDIR/run.log"
    printf "Sprint %s failed. Review %s and %s.
" "$N" "$LOGDIR/sprint-${N}.out" "$LOGDIR/sprint-${N}.err" >> "$LOGDIR/run.log"
  fi
  echo "=== END SPRINT $N ===" | tee -a "$LOGDIR/run.log"
  sleep 2
done

echo "Overnight run finished. Review $LOGDIR/run.log"