Path to existing additionalSchemaInfo JSON file.
EntitySettings for any __mj target entities (keyed by entity name).
Current state of target tables (for evolution scenarios). Empty array for new tables.
Path to metadata directory (e.g., "metadata").
Path to migrations directory (e.g., "migrations/v2").
Current MJ version for migration naming.
Target database platform.
Introspected source schema from connector.
Source system name (e.g., "HubSpot").
User's customizations for target tables.
Complete input to the SchemaBuilder orchestrator.