Replace old used-to-be-GORM datastructures (#104305) with sqlc-generated
structs. This also makes it possible to use more specific structs that
are more taylored to the specific queries, increasing efficiency.
This commit mostly deals with workers, including the sleep schedule and
task scheduler.
Functional changes are kept to a minimum, as the API still serves the
same data.
Because this work covers so much of Flamenco's code, it's been split up
into different commits. Each commit brings Flamenco to a state where it
compiles and unit tests pass. Only the result of the final commit has
actually been tested properly.
Ref: #104343
This also corrects the sleep schedule schema to actually store the
`is_active` field as `boolean` (it was `numeric`, which is the same
underlying field type in SQLite, but produces a different struct field
in the sqlc-generated Go code).
Ref: #104305
Remove the introductionary comments from `query_jobs.sql` and
`query_workers.sql`. Sqlc got confused by this, and placed them in the
wrong (well, not-intended-by-me) place in the generated Go code.
No functional changes.
This is a bit more work than other queries, as it also breaks apart the
fetching of the job and the worker into separate ones. In other words,
internally the persistence layer API changes.
