- Rename EmailApiDbContext MigrationTableName from '_EmailApiMigrations' to '_Migrations'
- Rename MyAiDbContext MigrationTableName from '_MyAiMigrations' to '_Migrations'
- Add migrations to rename tables in database: emailApi._EmailApiMigrations → emailApi._Migrations, myAi._MyAiMigrations → myAi._Migrations
- Aligns with naming convention used in other schemas (cvMatcher, cvSearch, rag)
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>