feat(prover): update APIs && integrate swagger docs

[davidtaikocha]

• new flag: --prover.maxExpiry
• use swagger docs for prover APIs
• make prover APIs restful
• also let oracle prover to start a server, but wont check capacity

and will create another PR for hosting swagger docs by github-page

[codecov]

Codecov Report

Merging #386 (8edea43) into main (91bba90) will decrease coverage by 0.07%.
The diff coverage is 45.28%.

@@            Coverage Diff             @@
##             main     #386      +/-   ##
==========================================
- Coverage   52.42%   52.35%   -0.07%     
==========================================
  Files          39       39              
  Lines        4769     4781      +12     
==========================================
+ Hits         2500     2503       +3     
- Misses       2018     2022       +4     
- Partials      251      256       +5     

Files Changed	Coverage Δ
proposer/proposer.go	54.00% <ø> (ø)
proposer/prover_selector/eth_fee_eoa_selector.go	12.12% <0.00%> (ø)
prover/server/api.go	44.44% <44.44%> (ø)
prover/prover.go	30.60% <45.45%> (-5.42%)	⬇️
prover/server/server.go	63.82% <50.00%> (+63.82%)	⬆️
prover/config.go	93.06% <100.00%> (+0.06%)	⬆️

... and 1 file with indirect coverage changes

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