✨ feat(all): uconvert_value for value conversion, not requiring Quantity

[nstarman]

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[codecov]

Codecov Report

❌ Patch coverage is 98.43750% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 96.84%. Comparing base (1977618) to head (424e71e).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
src/unxt/_interop/unxt_interop_astropy/quantity.py	95.83%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #550      +/-   ##
==========================================
- Coverage   96.90%   96.84%   -0.06%     
==========================================
  Files          54       44      -10     
  Lines        2260     2158     -102     
  Branches       82       77       -5     
==========================================
- Hits         2190     2090     -100     
+ Misses         53       52       -1     
+ Partials       17       16       -1     

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[Copilot]

Pull request overview

This PR introduces a new uconvert_value function that performs unit conversions on raw numerical values without requiring Quantity objects. This is a lower-level function compared to uconvert, enabling high-performance batch conversions and seamless integration with JAX transformations.

Changes:

• Added uconvert_value as an abstract dispatch function to the unxt-api package
• Implemented multiple dispatches for different unit type combinations (strings, AbstractUnit, AbstractUnitSystem)
• Added Astropy interop support with hot-path optimization for identical units
• Provided comprehensive test coverage including JAX transformations, edge cases, and error handling
• Updated documentation with detailed API reference and usage examples

Reviewed changes

Copilot reviewed 14 out of 14 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
packages/unxt-api/src/unxt_api/_src/quantity.py	Adds abstract uconvert_value dispatch function definition
packages/unxt-api/src/unxt_api/__init__.py	Exports uconvert_value from the API package
packages/unxt-api/tests/test_quantity.py	Tests for abstract dispatch functionality of uconvert_value
packages/unxt-api/tests/test_package.py	Verifies uconvert_value is properly exported
packages/unxt-api/docs/api.md	Comprehensive documentation for the new function
src/unxt/_src/quantity/register_api.py	Implements dispatches for unit systems, strings, AbstractUnit, and convenience Quantity dispatch
src/unxt/_interop/unxt_interop_astropy/quantity.py	Adds Astropy unit support with hot-path optimization
src/unxt/quantity.py	Exports uconvert_value from main package
src/unxt/__init__.py	Adds uconvert_value to top-level exports
src/unxt/_src/quantity/base.py	Refactors to use uapi prefix for consistency
tests/unit/test_quantity.py	Extensive tests for all uconvert_value dispatches
tests/unit/test_astropy_interop_quantity.py	Tests for Astropy interop including JAX transformations
docs/interop/astropy.md	Documentation for Astropy integration
docs/guides/quantity.md	User guide with examples and best practices

[Copilot]

Pull request overview

Copilot reviewed 16 out of 16 changed files in this pull request and generated no new comments.