fix: Use uv to run twine in build_and_upload.sh script

- Fix twine execution to use 'uv run twine' instead of direct execution
- Update twine installation check to use 'uv pip show' instead of 'command -v'
- Ensure script is executable

scripts/build_and_upload.sh

@@ -19,7 +19,7 @@ if [[ ! -f "pyproject.toml" ]]; then
 fi
 
 # Install twine if not already installed
-if ! command -v twine &> /dev/null; then
+if ! uv pip show twine &> /dev/null; then
     echo "Installing twine..."
     uv pip install twine
 fi
@@ -62,7 +62,7 @@ if [[ ! -f "$HOME/.pypirc" ]]; then
     exit 1
 fi
 
-# Upload using twine
+# Upload using twine via uv
-twine upload --repository gitea dist/*
+uv run twine upload --repository gitea dist/*
 
 echo "Package uploaded successfully to Gitea!"