Update pre-commit configuration: enforce pyright and optimize local testing

[saleml]

Changes:

• Added pyright with proper project configuration
• Added type: ignore comments for current type issues (to be resolved later)
• Modified local pre-commit test scope to only run tests in testing/ folder
• Preserved full test suite requirement in GitHub CI

Note: While some type issues are temporarily ignored, they will need to be addressed in future PRs. The change maintains code quality while improving developer experience through faster local commits.

[josephdviviano]

lgtm -- thanks for your attention to detail here

[younik]

Good catch!