Refactor aio subsystem and config

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 51.73469% with 473 lines in your changes missing coverage. Please review.

Project coverage is 57.20%. Comparing base (9752ac1) to head (8d85b9f). Report is 1 commits behind head on main.

Files	Patch %	Lines
cmd/config/config.go	0.00%	171 Missing :warning:
cmd/util/flags.go	0.00%	84 Missing :warning:
cmd/dst/run.go	0.00%	36 Missing :warning:
internal/app/subsystems/aio/queue/queue.go	40.47%	25 Missing :warning:
...rnal/app/subsystems/aio/store/postgres/postgres.go	43.58%	22 Missing :warning:
internal/app/coroutines/schedulePromises.go	69.69%	12 Missing and 8 partials :warning:
internal/api/api.go	77.92%	16 Missing and 1 partial :warning:
cmd/serve/serve.go	0.00%	15 Missing :warning:
internal/app/subsystems/aio/store/sqlite/sqlite.go	59.37%	11 Missing and 2 partials :warning:
internal/kernel/system/system.go	73.80%	11 Missing :warning:
... and 20 more

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #388 +/- ## ========================================== - Coverage 57.60% 57.20% -0.41% ========================================== Files 114 113 -1 Lines 10158 10364 +206 ========================================== + Hits 5852 5929 +77 - Misses 3879 4004 +125 - Partials 427 431 +4 ```

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