React-MySQL Migration & Audit

I need the current React web application tied into a new MySQL database on my cPanel host. Right now the app speaks to PostgreSQL; I want every table, record, view, custom query, and stored procedure moved across and rewritten for MySQL syntax so nothing changes for the users.

Scope
• Migrate the entire data set—user profiles, transaction records, and any other existing tables—from PostgreSQL to MySQL with zero loss.
• Translate all bespoke SQL (functions, triggers, stored procedures, complex joins) so the application code keeps working without rewrites.
• Point the React front-end to the new MySQL connection and deploy it on cPanel.
• Run a thorough post-migration audit focused on user-related functionality:
– Login & authentication flows
– Profile updates and user settings
– Every in-app interaction that touches a user record or activity log

Deliverables
1. MySQL schema and migration scripts ready to rerun if needed.
2. Updated React environment variables / config that target the new database.
3. A brief audit report showing test cases and confirmation that all profile features above behave exactly as before.
4. Any utility scripts or documentation created during the process.

Acceptance criteria
• No data mismatches when comparing row counts and checksums between PostgreSQL and MySQL.
• All custom queries execute in MySQL with equal or better performance.
• End-to-end tests for the three audited areas pass consistently in production.

Please let me know which migration toolkit or libraries you plan to use (e.g., Sequelize, knex, mysqldump + custom scripts) and your estimated timeline for each milestone so I can slot this into our release window.