Publish party-position estimates and validation materials

scripts/install_public_guard.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+repo_root="$(git rev-parse --show-toplevel)"
+hook="$repo_root/.git/hooks/pre-push"
+
+if [[ -e "$hook" && ! -f "$hook" ]]; then
+  printf 'Cannot install guard: %s is not a regular file.\n' "$hook" >&2
+  exit 1
+fi
+
+if [[ -f "$hook" ]] && ! grep -Fq 'scripts/check_public_content.sh' "$hook"; then
+  printf 'Cannot install guard: existing pre-push hook is not managed by this repository.\n' >&2
+  exit 1
+fi
+
+cat > "$hook" <<'EOF'
+#!/usr/bin/env bash
+set -euo pipefail
+repo_root="$(git rev-parse --show-toplevel)"
+exec bash "$repo_root/scripts/check_public_content.sh"
+EOF
+chmod +x "$hook"
+printf 'Installed public-content pre-push guard.\n'