refactoring: context, types, etc

[sio4]

another cleanup

[codecov]

Codecov Report

Merging #8 (92d3b3e) into main (606cfde) will increase coverage by 0.99%.
The diff coverage is 94.73%.

@@            Coverage Diff             @@
##             main       #8      +/-   ##
==========================================
+ Coverage   72.58%   73.57%   +0.99%     
==========================================
  Files          17       17              
  Lines         704      704              
==========================================
+ Hits          511      518       +7     
+ Misses        182      177       -5     
+ Partials       11        9       -2     

Impacted Files	Coverage Δ
checks/checks.go	100.00% <ø> (ø)
checks/heartbeat.go	100.00% <ø> (ø)
exporters/exporters.go	83.33% <ø> (-0.67%)	⬇️
meari/server.go	90.00% <81.81%> (+1.11%)	⬆️
checks/ping.go	92.77% <100.00%> (+8.43%)	⬆️
cmd/bogo/main.go	36.73% <100.00%> (+0.65%)	⬆️
internal/common/gcp.go	100.00% <100.00%> (ø)
internal/common/plugins.go	100.00% <100.00%> (ø)
meari/default_server.go	100.00% <100.00%> (ø)
... and 1 more

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