feat(backend-native): Add throwContinueWait parameter to /cubesql API endpoint

[MazterQyou]

Check List

• Tests have been run in packages where changes have been made if available
• Linter has been run for changed code
• Tests for the changes have been added if not covered yet
• Docs have been added / updated if required

Description of Changes Made

This PR adds throwContinueWait optional boolean parameter to /cubesql API endpoint which, when enabled, surfaces Continue wait errors over HTTP transport instead of looping and holding the connection indefinitely.

[codecov]

Codecov Report

❌ Patch coverage is 84.61538% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 78.51%. Comparing base (1f5716a) to head (44aa6e7).
⚠️ Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
packages/cubejs-api-gateway/src/sql-server.ts	0.00%	1 Missing ⚠️
rust/cubesql/cubesql/src/compile/engine/df/scan.rs	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #10385      +/-   ##
==========================================
- Coverage   83.36%   78.51%   -4.85%     
==========================================
  Files         250      472     +222     
  Lines       74886    92294   +17408     
  Branches        0     3563    +3563     
==========================================
+ Hits        62429    72469   +10040     
- Misses      12457    19287    +6830     
- Partials        0      538     +538     

Flag	Coverage Δ
cube-backend	57.65% <50.00%> (?)
cubesql	83.36% <90.90%> (+<0.01%)	⬆️

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[hank-sq]

I actually just filed this #10387 - funny timing! Thanks for working on this.