chore: prepare repository for publishing

scripts/apply_migration.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+cd "$ROOT_DIR"
+
+if [[ -f ".env.local" ]]; then
+  # shellcheck disable=SC1091
+  source ".env.local"
+fi
+if [[ -f ".env" ]]; then
+  # shellcheck disable=SC1091
+  source ".env"
+fi
+
+if [[ -z "${DATABASE_URL:-}" ]]; then
+  echo "DATABASE_URL 未设置" >&2
+  exit 1
+fi
+
+find "db/migrations" -maxdepth 1 -type f -name "*.sql" | sort | while read -r migration; do
+  psql "$DATABASE_URL" -v ON_ERROR_STOP=1 -f "$migration"
+  echo "migration 已应用: $migration"
+done