"google_sql_database_instance" "main" { name = "my-database" database_version = "POSTGRES_15" region = "asia-northeast1" } plan結果: Plan: 1 to add → 問題なし!✓ apply結果: Error 403: Cloud SQL Admin API has not been used in project or it is disabled. → API未有効化で失敗! ↑Terraformの構文チェック+差分計算のみ • そもそもAPIが有効か • 権限があるのか