Add search schedules

[dfarr]

TODO:

• add coroutine
• add search schedules to dst

[codecov]

Codecov Report

Attention: 217 lines in your changes are missing coverage. Please review.

Comparison is base (84c3c8c) 66.07% compared to head (dfd075a) 66.77%.

Files	Patch %	Lines
internal/app/subsystems/api/service/promise.go	77.98%	36 Missing and 12 partials ⚠️
internal/app/subsystems/api/service/schedule.go	61.84%	21 Missing and 8 partials ⚠️
cmd/util/util.go	0.00%	18 Missing ⚠️
test/dst/model.go	63.63%	12 Missing and 4 partials ⚠️
...rnal/app/subsystems/aio/store/postgres/postgres.go	84.69%	10 Missing and 5 partials ⚠️
internal/app/subsystems/api/http/schedule.go	59.45%	12 Missing and 3 partials ⚠️
internal/app/subsystems/aio/store/sqlite/sqlite.go	87.50%	8 Missing and 4 partials ⚠️
internal/kernel/t_aio/store.go	0.00%	12 Missing ⚠️
internal/app/coroutines/schedulePromises.go	0.00%	11 Missing ⚠️
cmd/promises/promises.go	0.00%	8 Missing ⚠️
... and 6 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #171      +/-   ##
==========================================
+ Coverage   66.07%   66.77%   +0.70%     
==========================================
  Files          79       80       +1     
  Lines        7713     8052     +339     
==========================================
+ Hits         5096     5377     +281     
- Misses       2281     2320      +39     
- Partials      336      355      +19     

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