Feat/add type support to responses

[AaronPerezPerez]

• Adds support for typing request responses
• Adds standard error response type
• Adds support for custom error response types

[codecov-commenter]

Codecov Report

Merging #97 (71c5bb3) into main (0815b1d) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #97      +/-   ##
==========================================
- Coverage   96.44%   96.42%   -0.02%     
==========================================
  Files          11       11              
  Lines         197      196       -1     
  Branches       40       39       -1     
==========================================
- Hits          190      189       -1     
  Misses          6        6              
  Partials        1        1              

Impacted Files	Coverage Δ
src/TepperBuilder.ts	93.75% <100.00%> (ø)
src/TepperRunner.ts	98.46% <100.00%> (-0.03%)	⬇️
src/utils/safeJsonParse.ts	100.00% <100.00%> (ø)

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