chore: clean .gitignore cache

scripts/history-rewrite/tests/validate_after_rewrite.bats

@@ -1,41 +0,0 @@
-#!/usr/bin/env bats
-
-setup() {
-  # Create an isolated working repo
-  TMPREPO=$(mktemp -d)
-  cd "$TMPREPO"
-  git init -q
-  # Set local git identity for test commits
-  git config user.email "test@example.com"
-  git config user.name "Test Runner"
-  echo 'initial' > README.md
-  git add README.md && git commit -m 'init' -q
-  # Make a minimal .venv pre-commit stub
-  mkdir -p .venv/bin
-  cat > .venv/bin/pre-commit <<'SH'
-#!/usr/bin/env sh
-exit 0
-SH
-  chmod +x .venv/bin/pre-commit
-}
-
-teardown() {
-  rm -rf "$TMPREPO"
-}
-
-## Prefer deriving the script location from the test directory rather than hard-coding
-## repository root paths such as /projects/Charon. This is more portable across
-## environments and CI runners (e.g., forks where the repo path is different).
-SCRIPT_DIR=$(cd "$BATS_TEST_DIRNAME/.." && pwd -P)
-SCRIPT="$SCRIPT_DIR/validate_after_rewrite.sh"
-
-@test "validate_after_rewrite fails when backup branch is missing" {
-  run bash "$SCRIPT"
-  [ "$status" -ne 0 ]
-  [[ "$output" == *"backup branch not provided"* ]]
-}
-
-@test "validate_after_rewrite passes with backup branch argument" {
-  run bash "$SCRIPT" --backup-branch backup/main
-  [ "$status" -eq 0 ]
-}