backstage/.changeset/2674.md

@backstage/backend-common, @backstage/create-app

@backstage/backend-common	@backstage/create-app
minor	minor

Auto-create plugin databases

Relates to #1598.

This creates databases for plugins before handing off control to plugins.

The list of plugins currently need to be hardcoded depending on the installed plugins. A later PR will properly refactor the code to provide a factory pattern where plugins specify what they need, and knex instances will be provided based on the input.