♻️ refactor: hoist config override machinery into LocalConfigurable

[nstarman]

Summary

The QuantityReprConfig and QuantityStrConfig classes in unxt._src.config were near-identical twins: each carried its own copy of __getattribute__ (the thread-local override lookup) and override() (the context-manager builder). The two copies differed only in:

• the key-set constant they referenced (QUANTITY_REPR_CONFIG_KEYS vs QUANTITY_STR_CONFIG_KEYS — identical 4-name frozensets),
• the class name interpolated into error messages, and
• the short_arrays default.

This PR moves both methods into the shared LocalConfigurable base, keyed off a per-subclass _config_keys allowlist. Each concrete config now declares only its traits, docstring, and _config_keys.

The same two methods had been copied a third and fourth time into unxts.parametric's _ParametricLocalConfig. Now that LocalConfigurable provides them, that intermediate base is redundant and is removed — ParametricQuantityReprConfig / ParametricQuantityStrConfig inherit directly from LocalConfigurable. Their now-unused imports (contextlib, Config, _NestedConfigContext) are dropped.

Behavior

Unchanged. The override() cfg-branch still intersects the Config-specified names with each class's override allowlist (specified & keys); _local remains per-instance (set in LocalConfigurable.__init__), so repr/str override stacks stay independent.

Verification

• ruff check / ruff format clean; all pre-commit hooks pass
• 181 tests pass: tests/unit/test_config.py, tests/unit/test_quantity_printing.py, packages/unxts.parametric/tests, plus the config-module doctests (unxt + parametric)

Net

−167 lines (136 insertions, 303 deletions) across the two files.

🤖 Generated with Claude Code

[Copilot]

Pull request overview

This PR refactors the thread-local override machinery for nested config objects by hoisting the duplicated __getattribute__ override lookup and override() context manager builder into the shared LocalConfigurable base in unxt._src.config, keyed by a per-subclass _config_keys allowlist. It also removes the now-redundant _ParametricLocalConfig base in unxts.parametric, having the parametric repr/str config classes inherit directly from LocalConfigurable.

Changes:

• Move thread-local override lookup (__getattribute__) and override() context-manager construction into LocalConfigurable, using a per-subclass _config_keys allowlist.
• Update QuantityReprConfig / QuantityStrConfig to declare _config_keys and rely on the shared base implementation.
• Remove unxts.parametric’s _ParametricLocalConfig and unused imports, switching parametric config classes to inherit directly from LocalConfigurable.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/unxt/_src/config.py	Centralizes thread-local override behavior in LocalConfigurable and updates quantity repr/str configs to use _config_keys.
packages/unxts.parametric/src/unxts/parametric/_src/config.py	Removes redundant local-config base and simplifies parametric config classes to inherit LocalConfigurable directly.

[codecov]

Codecov Report

❌ Patch coverage is 96.15385% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 96.59%. Comparing base (c9d3955) to head (ffdef0c).

Files with missing lines	Patch %	Lines
src/unxt/_src/config.py	96.15%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #798      +/-   ##
==========================================
+ Coverage   91.98%   96.59%   +4.61%     
==========================================
  Files          83       44      -39     
  Lines        3766     2496    -1270     
  Branches      313      142     -171     
==========================================
- Hits         3464     2411    -1053     
+ Misses        227       54     -173     
+ Partials       75       31      -44     

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[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated no new comments.