- Add module field ID
- Rename db table (compose_module_form => compose_module_field)
- Add id, created_at, updated_at, deleted_at db columns
- Rename json to options, module_id to rel_module
- Fix primary keys (now just ID), add unique indexes (mod+place, mod+name)
- Add foreign key from fields to modules
- module repo Update() func no longer does REPLACE but UPDATE
- in updateFields(), fields are removed more precisely (only missing fields are removed)
- Add integration tests for module/field updates