Implement coercion of numeric types for ascription and arithmetic (off by default)

[nrc]

Another step towards better UoM. This also removes the deserialize bounds on a few things, notably operations. The changes to polar are a temporary step backwards and will be addressed in another PR

[qa-wolf]

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[codspeed-hq]

CodSpeed Walltime Performance Report

Merging #6175 will degrade performances by 16.14%

_{Comparing nrc-uom-coerce (1beccac) with main (38446b5)}

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

Summary

⚡ 2 improvements
❌ 12 regressions
✅ 78 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
⚡	execute_bracket	2.6 s	2.3 s	+10.15%
⚡	execute_cycloidal-gear	1.4 s	1.2 s	+10.04%
❌	parse_food-service-spatula	11 ms	12.2 ms	-10.27%
❌	parse_gear-rack	2.1 ms	2.3 ms	-11.13%
❌	parse_gear	7.8 ms	8.9 ms	-12.25%
❌	parse_gridfinity-baseplate-magnets	13.6 ms	15.4 ms	-11.5%
❌	parse_hex-nut	987.3 µs	1,172.6 µs	-15.8%
❌	parse_lego	2.7 ms	3.1 ms	-12.54%
❌	parse_makeup-mirror	4.2 ms	4.8 ms	-12.69%
❌	parse_mounting-plate	2.8 ms	3.3 ms	-16.14%
❌	parse_poopy-shoe	7.6 ms	8.8 ms	-13.81%
❌	parse_router-template-cross-bar	5.2 ms	5.8 ms	-10.88%
❌	parse_socket-head-cap-screw	1.4 ms	1.6 ms	-11.8%
❌	parse_washer	505.7 µs	563.4 µs	-10.26%

[codecov]

Codecov Report

Attention: Patch coverage is 66.50485% with 207 lines in your changes missing coverage. Please review.

Project coverage is 85.04%. Comparing base (ce7a967) to head (1beccac).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
rust/kcl-lib/src/execution/types.rs	65.36%	160 Missing ⚠️
rust/kcl-lib/src/std/args.rs	42.85%	24 Missing ⚠️
rust/kcl-lib/src/execution/exec_ast.rs	76.76%	23 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6175      +/-   ##
==========================================
- Coverage   85.34%   85.04%   -0.31%     
==========================================
  Files         110      110              
  Lines       44248    44609     +361     
==========================================
+ Hits        37765    37938     +173     
- Misses       6483     6671     +188     

Flag	Coverage Δ
rust	85.04% <66.50%> (-0.31%)	⬇️

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