refactor: remove portal deployment coupling

scripts/test-verify-line-endings.sh

@@ -44,4 +44,17 @@ printf 'FROM scratch\n' > "$fixture_root/Dockerfile"
 
 "$repo_root/scripts/verify-line-endings.sh" "$fixture_root"
 
+git_fixture="$fixture_root/git-worktree"
+mkdir -p "$git_fixture"
+git -C "$git_fixture" init -q
+printf 'tracked then deleted\n' >"$git_fixture/deleted.md"
+git -C "$git_fixture" add deleted.md
+rm "$git_fixture/deleted.md"
+
+git_output="$(cd "$git_fixture" && "$repo_root/scripts/verify-line-endings.sh" 2>&1)"
+if grep -Fq 'No such file or directory' <<<"$git_output"; then
+  echo "line-ending verifier tried to read a tracked deletion" >&2
+  exit 1
+fi
+
 echo "line-ending verifier tests passed"