Replace constant values with static class properties

 * ```

 */

export class SqliteKvStore implements KvStore {

  #initialized: boolean;

  #db: DatabaseSync;

  static readonly #defaultTableName = "fedify_kv_v2";

  static readonly #tableNameRegex = /^[A-Za-z_][A-Za-z0-9_]{0,63}$/;

  readonly #db: DatabaseSync;

  readonly #tableName: string;

  #initialized: boolean;

  constructor(

    readonly db: DatabaseSync,

  ) {

    this.#db = db;

    this.#initialized = options.initialized ?? false;

    this.#tableName = options.tableName ?? "fedify_kv_v2";

    this.#tableName = options.tableName ?? SqliteKvStore.#defaultTableName;

  }

  /**

      return;

    }

    if (!/^[A-Za-z_][A-Za-z0-9_]{0,63}$/.test(this.#tableName)) {

    if (!SqliteKvStore.#tableNameRegex.test(this.#tableName)) {

      throw new Error(

        `Invalid table name for the key-value store: ${this.#tableName}`,

      );