api, config: modular server

[fedekunze]

Description

closes: #8208

---

Before we can merge this PR, please make sure that all the following items have been
checked off. If any of the checklist items are not applicable, please leave them but
write a little note why.

• Targeted PR against correct branch (see CONTRIBUTING.md)
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Code follows the module structure standards.
• Wrote unit and integration tests
• Updated relevant documentation (docs/) or specification (x/<module>/spec/)
• Added relevant godoc comments.
• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
• Re-reviewed Files changed in the Github PR explorer
• Review Codecov Report in the comment section below once CI passes

[codecov]

Codecov Report

Merging #8210 (4c90a06) into master (3257618) will decrease coverage by 0.02%.
The diff coverage is 27.27%.

@@            Coverage Diff             @@
##           master    #8210      +/-   ##
==========================================
- Coverage   61.91%   61.88%   -0.03%     
==========================================
  Files         609      609              
  Lines       35101    35098       -3     
==========================================
- Hits        21732    21721      -11     
- Misses      11085    11096      +11     
+ Partials     2284     2281       -3     

Impacted Files	Coverage Δ
server/config/toml.go	18.18% <0.00%> (ø)
server/grpc/server.go	62.50% <ø> (ø)
simapp/app.go	82.88% <0.00%> (-1.91%)	⬇️
server/config/config.go	39.77% <33.33%> (+0.23%)	⬆️
testutil/network/network.go	90.54% <100.00%> (ø)
testutil/network/util.go	72.91% <100.00%> (ø)
client/rpc/block.go	0.00% <0.00%> (-10.00%)	⬇️
types/simulation/account.go	84.00% <0.00%> (-1.72%)	⬇️
simapp/simd/cmd/root.go	59.83% <0.00%> (-1.33%)	⬇️
... and 12 more

[alexanderbez]

While it's great you're getting a head start on these changes to test out ideas and theories. the proposal needs to be properly vetted and evaluated by team members via an ADR.

[fedekunze]

@alexanderbez yes I plan to do that before marking the PR ready for review. I'm figuring out the components and requirements now to write a complete ADR for it

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[tac0turtle]

@fedekunze, I'm going close this for now since the ADR was closed as well. The branch will live on.