MVP to v2 data migration pipeline

[turnerrainer]

AS AN Architect I WANT to have MVP to v2 data migration pipeline SO THAT implementing v2 could be done in parallel with MVP without affecting each other

Acceptance Criteria

• [ ] MVP uses its own database and is not affected by v2 db
• [ ] v2 uses its own database and is not affected by MVP db
• [ ] Data is migrated from MVP db tables to appropriate v2 ones
• [ ] Data is not migrated from v2 db tables to any MVP ones
• [ ] No db schema changes are made to either MVP or v2 due to the nature of this issue
• [ ] Data migration from MVP to v2 can be initiated by a separate data migration script directlly and/or CronManager

[rasmusei]

Not needed. Clients don't want to have historical chats