Node Explorer: Backend Support

[alexanderbez]

Add support for node exploration and crawling in Atlas:

• Port crawling functionality from tmcrawl
• Add DB models & schema migrations
• Add API route to search for nodes
• Tests

ref: #53

[lgtm-com]

This pull request introduces 2 alerts when merging 08c02f5 into 2de14cc - view on LGTM.com

new alerts:

• 1 for Incorrect conversion between integer types
• 1 for Database query built from user-controlled sources

[lgtm-com]

This pull request introduces 2 alerts when merging 81a0f55 into 2de14cc - view on LGTM.com

new alerts:

• 1 for Incorrect conversion between integer types
• 1 for Database query built from user-controlled sources

[codecov-io]

Codecov Report

Merging #54 (c403398) into main (2de14cc) will decrease coverage by 3.72%.
The diff coverage is 41.51%.

@@            Coverage Diff             @@
##             main      #54      +/-   ##
==========================================
- Coverage   59.34%   55.62%   -3.73%     
==========================================
  Files          18       22       +4     
  Lines        1493     1886     +393     
==========================================
+ Hits          886     1049     +163     
- Misses        469      682     +213     
- Partials      138      155      +17     

Impacted Files	Coverage Δ
cmd/server.go	51.13% <0.00%> (-3.75%)	⬇️
server/crawl/node_crawler.go	0.00% <0.00%> (ø)
server/crawl/util.go	0.00% <0.00%> (ø)
server/models/module.go	57.08% <ø> (ø)
server/router/v1/router.go	56.55% <45.45%> (-0.66%)	⬇️
server/models/node.go	74.66% <74.66%> (ø)
server/crawl/pool.go	97.36% <97.36%> (ø)
... and 1 more

[lgtm-com]

This pull request introduces 2 alerts when merging 2ccbc5e into 2de14cc - view on LGTM.com

new alerts:

• 1 for Incorrect conversion between integer types
• 1 for Database query built from user-controlled sources

[lgtm-com]

This pull request introduces 2 alerts when merging 222cc6c into 2de14cc - view on LGTM.com

new alerts:

• 1 for Incorrect conversion between integer types
• 1 for Database query built from user-controlled sources

[okwme]

would be great to target https://github.com/cosmos/registry eventually and in the future when these get moved to the cosmos name service to query them there (oh shit what a chicken or egg problem tho, need a node to query the node for the list of nodes 🤪)