on reconnect we assume the same database + salt etc. still exists, and use the same salt and file. We cannot assume this, and should instead completely re-instantiate the db especially ensuring we call EncryptedConnection::new in order to re-create the database file & SqlCipher salt in case the db was deleted. Should also make sure that the pool and write_conn are both properly re-instantiated.

Failure to do these checks/re instantiate could mean we point to a db file that no longer exists. Worse, if we were in a transaction before the release, we may try to write to a non-existent file since we do not release the write connection currently.