TODO: soft-deletion
- enable soft-deletion if table has `is_deleted` and `deleted_at` fields
- if soft delete is enabled, DeleteXyz should do update (not delete) and set is_deleted and deleted_at
    - ...and DeleteXyz should have pointer receiver for soft-delete
- GetXyzByID should include `ErrItemIsDeleted` if item is soft-deleted

TODO: migration-structs
- Right now, migrations are strings.  Could be a struct with "name", "up" and "down" fields
- Adding a "down" operation enables handling newer DB versions with "down instead of error-out" for development (perhaps a flag)

IDEA: migrations-table
- Store migrations in a table.  This makes the schema more self-documenting.
- Possible schema: name, sql_up, sql_down, hash (computed from those fields plus previous migration hash)
    - or just rowid instead of hash?  Migration sequence should be immutable after publishing, so there should never be "conflicts"

TODO: language-server-for-TODO.txt

TODO: auto-migration-checker
- Use `pkg/schema` to test whether a base schema plus a migration equals a new schema

TODO: codegen SaveXyz update path doesn't check foreign keys
- Insert path has FK error handling, but the update path wraps everything in Must
- An update that violates an FK constraint will panic instead of returning an error

TODO: codegen `without rowid` tables properly

TODO: generated test file inclues global test DB setup, which is wrong

TODO: join-tables
- handle codegen for without rowid tables properly
- add "get all X for Y"

TODO: create a Getter function for each unique index

TODO: consider CreateDB and CreateMemoryDB

TODO: generate tests for the remaining CRUD, try to hit ~100% default test coverage