chore: clean .gitignore cache

scripts/history-rewrite/tmp_run_validate_test.sh

@@ -1,22 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-TMP=$(mktemp -d)
-REPO_ROOT=$(cd "$(dirname "$0")/../../" && pwd)
-cd "$TMP"
-git init -q
-echo hi > README.md
-git add README.md
-git commit -q -m init
-mkdir -p .venv/bin
-cat > .venv/bin/pre-commit <<'PRE'
-#!/usr/bin/env sh
-exit 0
-PRE
-chmod +x .venv/bin/pre-commit
-echo "temp repo: $TMP"
-# Use the configured REPO_ROOT rather than hardcoding /projects/Charon.
-# Note: avoid a leading slash before "$REPO_ROOT" which would make the path invalid
-# on different hosts; use "$REPO_ROOT/scripts/..." directly.
-"$REPO_ROOT/scripts/history-rewrite/validate_after_rewrite.sh" || echo "first run rc $?"
-"$REPO_ROOT/scripts/history-rewrite/validate_after_rewrite.sh" --backup-branch backup/main || echo "second run rc $?"
-echo exit status $?