Added a new `description` column to the `accounts` table in the database schema. Updated the model, DAO methods, and queries to handle the `description` field for both inserting and retrieving account data. This change ensures that account entries can now include descriptive information.
Introduced tables for devices, accounts, and transactions in the schema, along with associated models. Implemented DAO methods for CRUD operations, including upsert functionality for accounts and deduplication for transactions. These changes enable structured management of account and transaction data.
