chore: update TODOs for various components and files to enhance validation, UI/UX, security, state management, performance, and testing improvements

src/data/store.ts

@@ -1,5 +1,21 @@
+// TODO: Database Integration & Persistence
+// - Implement database schema design
+// - Add database connection pooling
+// - Implement data migration strategy
+// - Add database backup and recovery plans
+// - Implement data validation layer
+// - Add transaction logging
+// - Implement audit trail
+// - Add data archival strategy
+
 import type { Account, Transaction } from "../types";
 
+// TODO: Replace in-memory store with persistent database
+// - Implement database connection and configuration
+// - Create database schema for accounts and transactions
+// - Add migration system for schema changes
+// - Update all CRUD operations to use database instead of arrays
+
 // Temporary in-memory store for development
 export const accounts: Account[] = [
   {