feat(rate-of-closure): add Sasho rotational AoA option

[d-sorgcodexagent]

Summary

• add Sasho's nearest-shaft face-center rotational AoA as a stable third method beside the remove-shaft counterfactual and two-factor Shapley attribution
• compute Q = A + s(s dot (F-A)), v = omega x (F-Q), then signed AoA from the vertical and horizontal components of v
• expose the metric, full numerical provenance, and independently selectable velocity vector in React and PyQt6
• retain method ID, complete angular velocity, nearest point, lever, velocity components, and AoA in strict impact-scene v3 export
• pin Python/TypeScript parity to an exact shared golden and explicitly label the result descriptive, non-additive, and noncausal

Stack

• base: codex/4142-localized-react-execution at exact fb55aa5902e74c7d4f1202cd99fc104414facfd5 (feat(rate-web): execute localized torque variation #4417)
• exact head: 87719a2663defac25aac300a95e48c781b916626
• parent shaft-rotation epic: EPIC: Rigorous Shaft-Axis Rotation Attribution for Contact-Point Angle of Attack #4206
• current Rate goal: Epic: Rate of Closure Modern Workbench — prescribed inputs, kinetics, summaries, persistence, and parity #4135

Verification

• python -m pytest tests/rate_of_closure -q — 1,222 passed
• python -m pytest tests/shared/python/golf_club -q — 175 passed, 2 optional build123d skips
• full Rate React Vitest — 110 files / 877 tests passed
• Python 3.12 + pinned Mypy 1.13 on seven changed production Python modules — success
• Ruff check/format, TypeScript, zero-warning ESLint, Vite production build, docs governance, changed-test assertions, detect-secrets, changed-source size, and diff checks — green

Scientific boundary

The Sasho option intentionally uses complete club angular velocity. It is not equal to the existing shaft-axis-only removal unless non-shaft angular velocity contributes zero at the face-center lever. It is a descriptive rotation-only AoA, not an additive or causal decomposition, and it does not alter collision or ball-flight physics.

Closes #4434