fix: mark package typed for mypy

fix: satisfy ruff typing rules

fix: avoid YAML python constructor in copier

feat: align template with uv-based tooling

chore: drop pyproject debug output

chore: drop Ruff import sorting rule

chore: ignore Ruff S101 for tests

chore: prefer underscore project slug

chore: hide template pyproject during sync

chore: add template fallbacks in pyproject

chore: force uv to ignore template config

chore: revert to working directory for uv

chore: disable root uv config detection

chore: debug generated pyproject

chore: use absolute UV_PROJECT path