Description

Followup of discussion: #349

This PR modernizes the project’s tooling to improve dependency management, developer experience, and CI reliability.

Tasks

Replace pip-based workflows with uv (https://github.com/astral-sh/uv) for faster, deterministic dependency resolution

• Replace pip-based workflows with uv for faster, deterministic dependency resolution
• Update local setup and CI to use uv sync with locked dependencies
• (Optional) Add ty (https://docs.astral.sh/ty/) for lightweight static type

No functional changes to application code; this is a tooling and workflow improvement only.