Configure Pyright type checking

[ulises-jeremias]

Summary

Default type checker is Pyright (CI-mature).

CNA mapping

CNA: type-check turbo pipeline / tsc.

Acceptance criteria

• pyrightconfig.json or [tool.pyright] present
• Strict-enough settings documented
• uv run pyright succeeds on stubs

Blocked by

none

Blocks

none

Reference

Parity matrix (workspace): knowledge/create-python-app-parity-matrix.md
Reference repo: https://github.com/Create-Node-App/create-node-app

Parent epic

#3