🏷️ tighten _NestedSequence

[jorenham]

No description provided.

[Copilot]

Pull Request Overview

This PR tightens the type annotations for _NestedSequence protocol and cleans up imports/type variable declarations in the NumPy stubs. The changes focus on improving type safety and code organization.

• Updates _NestedSequence protocol with more precise iterator return types and adds @final decorator
• Reorganizes type variable declarations and removes unused imports in _linalg.pyi
• Removes unnecessary # type: ignore[overload-overlap] comments from function overloads

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/numpy-stubs/_typing/_nested_sequence.pyi	Adds @final decorator and refines iterator return types for better type safety
src/numpy-stubs/linalg/_linalg.pyi	Cleans up imports, reorganizes type variables, and removes type ignore comments

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