Probe ty readiness in CI

[uriahf]

Summary

• run uv run ty check src/rtichoke in package CI
• keep the type-check step non-blocking while we establish the baseline

Baseline

ty reports 11 diagnostics on the current package source:

• 2 intentional calibration export/shadowing assignments in calibration/__init__.py
• 1 internal times annotation mismatch in performance_table.py
• 4 Polars scalar-narrowing issues around max() values used as floats
• 1 Reactable callable/stub mismatch for details=confusion_matrix
• 3 NumPy-array vs list annotation mismatches in processing/combinations.py

The package CI otherwise passes: Ruff lint, Ruff format, build, and all 137 tests.

Scope

Developer tooling only. No type fixes, runtime dependencies, API changes, statistical changes, or functional refactoring.

Recommendation

Keep this probe non-blocking for now. The 11-error baseline is small enough to address incrementally in a follow-up PR; once it reaches zero, make ty blocking in CI.

[github-actions]

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2026-08-20 19:00 UTC